2024年江苏省淮安市盱眙县第一中学 中考数学模拟测试 (三)
江苏
九年级
三模
2024-05-23
278次
整体难度:
容易
考查范围:
数与式、图形的性质、方程与不等式、函数、统计与概率、图形的变化
一、单选题 添加题型下试题
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 用科学记数法表示绝对值大于1的数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/114a43fd02a222d89e868b0d1595d480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d3c9ce32b721995f355eea411340e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b871a762469393cdd22f15aa49ebb8f9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0fcc2f38659380734794013e1af8a7.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
【知识点】 一元二次方程的定义解读 根据一元二次方程根的情况求参数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c42ed2e5bd5a0f033e24008697bf4963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe8bb808edb7f81fb3c14c8f3d7f0fad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728c6822658a9b1972a6dc3b55c9b1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f69f65e38ffa351e55180bec25aa1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05006a7ea36dc6a9f2e17bf79e98b6a0.png)
A.4个 | B.3个 | C.2个 | D.1个 |
二、填空题 添加题型下试题
【知识点】 综合提公因式和公式法分解因式解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ee628efd6b2f7296c106dd5cbae42f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51efd0ca4b6c3d42afdc6b8feb330a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1065ae0947705c7d16a5a86c78f07e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f9353ca110c8b81561455b232dbc15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c44345de7d1f37b48def25db8c5e2b.png)
【知识点】 线段垂直平分线的性质解读 等边三角形的判定和性质 圆周角定理解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://img.xkw.com/dksih/QBM/2022/5/27/2988426092421120/2991052302811136/STEM/e6cbe7a8-c77a-4f52-bc0f-c8a7c706ab93.png?resizew=268)
【知识点】 勾股定理与网格问题解读 相似三角形的判定与性质综合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fdc829ee5eb97cd5d926b246468b15a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ad4c0ba3a6750537789844d0ec419d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15148cae568d8960c62a4d0eddf5b03b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf742676db9b42847b6e7255b0456381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
三、解答题 添加题型下试题
【知识点】 利用平行四边形的性质证明解读 证明四边形是菱形解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)若从以上非物质遗产中任选一个,则选中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若该学校决定邀请两位非遗传承人进校园宣讲,请用画树状图或列表的方法,求选中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
【知识点】 列表法或树状图法求概率解读
甲厂:4,5,5,5,5,7,9,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5453184e251cfe787b5965cd38426962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b184c94e38f1e5dbe750b2168c2a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180ea775f2af05650404d764384e7faa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5453184e251cfe787b5965cd38426962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b184c94e38f1e5dbe750b2168c2a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c748e40ba21ac5063d3bccaa57ef278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c748e40ba21ac5063d3bccaa57ef278.png)
根据以上数据,绘制了下面不完整的表格:
平均数 | 众数 | 中位数 | |
甲厂 | 8 | 5 | 6 |
乙厂 | a | ||
丙厂 | 4 | b |
(1)表格中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
(2)这三个厂家的销售广告分别利用了哪一种表示集中趋势的特征数?
(3)如果这三个家电厂家的电子产品的售价相同,则顾客购买哪一家的电子产品更合适,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2f20d1c4e14fb8f1a359c804d3b534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1640dcfef1e868362831f69d6d223b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
(2)求(1)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6964b99181d039fe8c5ed5fe2bb00f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67bc2e83f4460ca1e8b2295975eccfad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6d29649ca983107243a631e087205e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)如图2,要求设计的遮阳篷能最大限度地遮住夏天炎热的阳光,又能最大限度地使冬天温暖的阳光射入室内.当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1ca0c730ef0af461e3f49a8c3437a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be49497ddac7217d834e9d72e9f17b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b8c7291293d0b54f548d8fdec653f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61735186985176f1bb4862d89599990b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808edecb052cae4a5deb0f37602d95f2.png)
【知识点】 其他问题(解直角三角形的应用)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba87bb6ab3a88f6d9529e01ce585a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15514bc735fe4b744672edefe00009c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3aecd0dcb9aab7597330e81cd44c04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
投资金额 | 5 | 1 | 5 | ||
产品毛收入 | 3 | 2.8 | 10 |
(1)若A、B两地各投资金10万元,各自有盈利吗?其情况如何?
(2)若A、B两地共投资金20万元,承包农户能有盈利吗?如果没有盈利,怎样分配投入资金会损失最小?
(3)若A、B两地共投资金m万元,并且要实现最大盈利3.2万元,请求出m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af840c6111ed53db713cd8645cf53820.png)
(1)若二次函数的图象经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1156a8b29780810bd472f6d9e11b0e39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5255ef14ceee9754b8dc4a98b81aa48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d25376fc2a4c03f832092f9a601c5b.png)
(3)记关于x的二次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d295ccf3f5a558a7b97f56ba92a23d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e46371f310e03a153a1698aad9d4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb8949862b8eb8629408332d7e69908.png)
【知识点】 其他问题(二次函数综合)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/164a4df60a15587971e883cf557b5ce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b59bbee2de231210bcbf54712ef652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2861a245d5aa633ae1d2c7158194f4e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/164a4df60a15587971e883cf557b5ce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27546408b3fc40aed7d7d66e35e5561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e47e91cdad2fa2f170c8add31d90676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b533adf08987c7bffc4355c1c3b57f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377f5c10cf527c87ab06bff61384f7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32330dec3ca2963949057a26eb5cddaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca2698f08d94afa1cd5b81444791f4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8fbc229c957487495bb8cda1d4cfd8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
试卷分析
试卷题型(共 27题)
试卷难度
知识点分析
细目表分析 导出
题号 | 难度系数 | 详细知识点 | 备注 |
一、单选题 | |||
1 | 0.94 | 有理数加法运算 有理数的减法运算 两个有理数的乘法运算 有理数的乘方运算 | |
2 | 0.94 | 用科学记数法表示绝对值大于1的数 | |
3 | 0.85 | 合并同类项 同底数幂相乘 积的乘方运算 运用平方差公式进行运算 | |
4 | 0.85 | 根据平行线的性质求角的度数 三角形的外角的定义及性质 | |
5 | 0.65 | 无理数的大小估算 二次根式的加减运算 不等式的性质 | |
6 | 0.85 | 已知反比例函数的增减性求参数 | |
7 | 0.65 | 一元二次方程的定义 根据一元二次方程根的情况求参数 | |
8 | 0.65 | 三角形内角和定理的应用 全等三角形综合问题 角平分线的性质定理 等腰三角形的性质和判定 | |
二、填空题 | |||
9 | 0.85 | 综合提公因式和公式法分解因式 | |
10 | 0.85 | 解分式方程 | |
11 | 0.85 | 求加权平均数 | |
12 | 0.85 | 求弧长 | |
13 | 0.85 | 线段垂直平分线的性质 等边三角形的判定和性质 圆周角定理 | |
14 | 0.85 | 勾股定理与网格问题 相似三角形的判定与性质综合 | |
15 | 0.65 | 待定系数法求二次函数解析式 抛物线与x轴的交点问题 用勾股定理解三角形 | |
16 | 0.4 | 全等的性质和ASA(AAS)综合(ASA或者AAS) 用勾股定理解三角形 利用平行四边形的性质求解 线段问题(轴对称综合题) | |
三、解答题 | |||
17 | 0.85 | 实数的混合运算 加减消元法 特殊角三角函数值的混合运算 | 计算题 |
18 | 0.85 | 分式化简求值 | 计算题 |
19 | 0.85 | 利用平行四边形的性质证明 证明四边形是菱形 | 证明题 |
20 | 0.85 | 列表法或树状图法求概率 | 应用题 |
21 | 0.65 | 求中位数 运用中位数做决策 求众数 运用众数做决策 | 问答题 |
22 | 0.65 | 作垂线(尺规作图) 用勾股定理解三角形 90度的圆周角所对的弦是直径 切线的性质定理 | 作图题 |
23 | 0.65 | 其他问题(解直角三角形的应用) | 应用题 |
24 | 0.4 | 线段垂直平分线的判定 根据等角对等边证明等腰三角形 用勾股定理解三角形 半圆(直径)所对的圆周角是直角 | 问答题 |
25 | 0.65 | 求一次函数解析式 待定系数法求二次函数解析式 y=ax²+bx+c的最值 销售问题(实际问题与二次函数) | 应用题 |
26 | 0.4 | 其他问题(二次函数综合) | 问答题 |
27 | 0.4 | 角平分线性质定理及证明 用HL证全等(HL) 用勾股定理解三角形 相似三角形的判定与性质综合 | 证明题 |