2021年浙江省嘉兴市南湖区初中毕业生学业水平考试适应性练习(一) 数学试题
浙江
九年级
一模
2021-06-30
471次
整体难度:
容易
考查范围:
数与式、图形的变化、统计与概率、图形的性质、函数、方程与不等式
一、单选题 添加题型下试题
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 判断简单几何体的三视图解读
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/0c82a10b4f0c9323d726804c89dd9548.png)
A.甲班![]() | B.乙班![]() |
C.乙班![]() ![]() | D.![]() |
【知识点】 条形统计图和扇形统计图信息关联解读 频数分布直方图解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088428974080/STEM/05fbd170-422e-4cf4-a40b-86e1c9396953.png?resizew=183)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 正方体相对两面上的字解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
A.直角三角形 | B.等边三角形 | C.平行四边形 | D.正五边形 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868865fc0843084da4f4568231d8aaf9.png)
A.函数有最大值 | B.函数图象交![]() ![]() |
C.函数图象与直线![]() | D.若![]() ![]() ![]() ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80f65f6ef73562dce53f4629669d698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e7b8a59f8d66176463f3d71f882a26.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088429031424/STEM/92bfc7eb-2ae4-4558-aca3-d9b038353340.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 三角形内角和定理的应用解读 等腰三角形的性质和判定 圆周角定理解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095ab4a92bf822e175d370e6d0c8a730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78d0ab561d0c9bb9099772c596af8bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098a3e7d1f1890863b7483a98b618119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d540f6b930657a3d3c9fb4b79273fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f95fd176854673d22eb930f45103d76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d93949d8a15aca4e79cedb978590571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4976b67d9dd732f43caf2583510e50b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e50c50db9e8041f4332c121f40cda6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f580fcc87270b6b5161dcf979d26f138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df165bb01f809d72d4b5d69a5ab106ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a206d29917498e8ec8acf6a7641c040c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec53ba672835f340539abe6262ab7fc0.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088429056000/STEM/5dc712ce-a3fb-4f88-806f-4383722fd190.png)
A.①正确,②错误 | B.①错误,②正确 | C.①,②都正确 | D.①,②都错误 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d75df9d80ce1e0b7cb50464e293864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c82a10b4f0c9323d726804c89dd9548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.2人 | B.3人 | C.4人 | D.5人 |
【知识点】 用一元一次不等式解决实际问题解读
二、填空题 添加题型下试题
【知识点】 根据概率公式计算概率解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f11ec32d910488c76cb1b4652948218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bae66ab94447a52a85917a89dba6484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f11ec32d910488c76cb1b4652948218.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/3/5ef3944e-a91d-435e-82f6-f84b46f06d7a.png?resizew=180)
【知识点】 求两个位似图形的相似比
![](https://img.xkw.com/dksih/QBM/2022/3/26/2944793197158400/2946794848403456/STEM/9b81fcab-2aba-4953-9162-530b421de634.png?resizew=190)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66ec74b92a2d5ca3e8ad249c8d478e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50049a668ab96849b6a551ec3388c852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14afef31dafd22343bcc789cafa5c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
【知识点】 比较反比例函数值或自变量的大小解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.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/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088429187072/STEM/868ce49b-89d6-4452-9e4a-8e89a171b1e8.png)
三、解答题 添加题型下试题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8be64663f73ba82b61766d1bfa99fb8.png)
解法一:![]() ![]() | 解法二:![]() ![]() |
(2)请选择一种你喜欢的方法,完成解答.
【知识点】 分式加减乘除混合运算解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c27d00fa0f24bdac186c4c18d2439d.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088429244416/STEM/748addf2-72ae-42c5-bc6b-65270efae3f6.png)
(1)尺规作图:作边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)判断:在(1)所作图形中,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
【知识点】 作垂线(尺规作图)解读 证明某直线是圆的切线解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
分析数据:
组别 | 平均分 | 中位数 | 方差 | 优秀率 |
![]() | 71 | 65 | 309 | 30% |
![]() | 71 | 75 | 249 | 20% |
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(2)小嘉说:“这次知识竞赛我的成绩没有达到优秀,但在我们小组属于中等偏上,且我们组的合格率、优秀率都比另一组高,所以我认为我们组的成绩更好.”
①请你判断小嘉此次知识竞赛的成绩.
②假设你是另一组的成员,请写出一条你所在小组成绩更好的理由.
甲种糖果 | 乙种糖果 | 丙种糖果 | |
单价(元/千克) | 15 | 12 | 10 |
千克数 | 30 | 50 | 20 |
(2)为了使什锦糖的单价不超过乙种糖果的单价,商场计划在该什锦糖中再加入甲、丙两种糖果共100千克,问其中至少要加入丙种糖果多少千克?
【知识点】 用一元一次不等式解决实际问题解读 求加权平均数解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/c9fd059d20e1db7788f756c98ca04eab.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088429326336/STEM/961632a0-19fd-4263-aaa0-442842054eb9.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088429326336/STEM/22602b7c-c03d-42cf-9e89-a9eb1f16b624.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088429326336/STEM/d3e63c9d-f5bc-4008-8073-3fc5613ed488.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088429326336/STEM/5e1c8dee-7c5a-4268-9d35-dd30ea70c35f.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088429326336/STEM/3aecb194-e523-4051-a58f-c1c7eeac3774.png)
(1)如图3,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(2)如图4,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
①当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
②当点
![](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/d676c6baf3d1b3696484f7dd372dd49f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad57d1a81f526d6c1d4ad875d3cec29d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4d6073e2a222920e950faa7cbe9afd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50da02f2eb11970b7ce46d9bf87e22a7.png)
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712452962312192/2715088429359104/STEM/d5a0f5d0-79a1-4c07-b684-c742cb6eb1de.png?resizew=316)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b96d93615b03284ada76153c394a49d.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
(3)在(2)的条件下,把点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86380a6d6501f6504dcb4aa5e3099f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86380a6d6501f6504dcb4aa5e3099f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae863e7a1f1fed09f1075de4a817c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86380a6d6501f6504dcb4aa5e3099f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88b965ea1d922f9812fa95c0d85af36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f52b152eaf63415b10ed786a58a2747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef3b6ae63a769708a40e5eff5cef23c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b056a90a2751f04ba5fff3dc5c1d0674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3041e954f2249c6437fd7d73fdb428c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6b6b2fbc4cb768a52ddf9f5e6f1f5e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1cde7e9ed002a30e4d3e2f94513c75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17cb7a12bb8797615303fc20adb9f988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cea72e0c37257bcfd85a59ef8dd0f80.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/2/da4619e9-3b89-4443-8de6-9e2cc92a5a95.png?resizew=353)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66884efff7400f92b530d69d029778d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17cb7a12bb8797615303fc20adb9f988.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba70863115b0947e98214a7b2512167d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17cb7a12bb8797615303fc20adb9f988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
(3)作点B关于直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f6d25d185db6fc2a69f90ace9a6477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655cc150ddc9deba2254780984d0024.png)
②当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17cb7a12bb8797615303fc20adb9f988.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71357212061246a63dcedd1a3376cc2.png)
试卷分析
试卷题型(共 24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 | 0.85 | 倒数 | |
2 | 0.85 | 判断简单几何体的三视图 | |
3 | 0.85 | 用科学记数法表示绝对值大于1的数 | |
4 | 0.85 | 条形统计图和扇形统计图信息关联 频数分布直方图 | |
5 | 0.85 | 正方体相对两面上的字 | |
6 | 0.85 | 旋转的性质及辨析 | |
7 | 0.65 | y=ax²+bx+c的图象与性质 y=ax²+bx+c的最值 根据二次函数图象确定相应方程根的情况 | |
8 | 0.65 | 三角形内角和定理的应用 等腰三角形的性质和判定 圆周角定理 | |
9 | 0.65 | 矩形与折叠问题 三角函数综合 | |
10 | 0.65 | 用一元一次不等式解决实际问题 | |
二、填空题 | |||
11 | 0.85 | 已知字母的值 ,求代数式的值 | |
12 | 0.94 | 根据概率公式计算概率 | |
13 | 0.85 | 求两个位似图形的相似比 | |
14 | 0.65 | 坐标与图形 用勾股定理解三角形 | |
15 | 0.85 | 比较反比例函数值或自变量的大小 | |
16 | 0.65 | 角平分线的判定定理 含30度角的直角三角形 等腰三角形的性质和判定 | |
三、解答题 | |||
17 | 0.85 | 实数的混合运算 综合提公因式和公式法分解因式 | 计算题 |
18 | 0.85 | 分式加减乘除混合运算 | 计算题 |
19 | 0.65 | 作垂线(尺规作图) 证明某直线是圆的切线 | 作图题 |
20 | 0.85 | 运用中位数做决策 运用方差做决策 | 问答题 |
21 | 0.85 | 用一元一次不等式解决实际问题 求加权平均数 | 问答题 |
22 | 0.65 | 等边三角形的判定和性质 用勾股定理解三角形 求扇形面积 已知余弦求边长 | 问答题 |
23 | 0.4 | 因式分解法解一元二次方程 图形问题(实际问题与二次函数) 利用平移的性质求解 | 问答题 |
24 | 0.15 | 用勾股定理解三角形 利用菱形的性质求线段长 相似三角形的判定与性质综合 解直角三角形的相关计算 | 问答题 |