如图,
中,
,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/f2631fd3-ca79-45a5-bd8a-4cea3181feac.png?resizew=168)
(1)作
的平分线交
边于点D.(尺规作图,保留痕迹)
(2)求点D到直线
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4dbd6e0624c4b1984bf1dd791a02df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff58afbcca063d4af00b98729d78a8b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/f2631fd3-ca79-45a5-bd8a-4cea3181feac.png?resizew=168)
(1)作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求点D到直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
更新时间:2022-10-25 13:09:59
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解答题-问答题
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【推荐1】如图,BD平分
ABC的外角∠ABP,DA=DC,DE⊥BP于点E,若AB=5,BC=3,求BE的长.
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解答题-作图题
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【推荐2】如图,
,
.
的垂线
交
于点E,连接
.(尺规作图,并保留作图痕迹)
(2)如果
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71e6ea7333dbc78d0a7b9bc3892f940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61601ecf8de47ed9b84ee59d65f8118.png)
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解答题-作图题
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【推荐1】如图,在
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/58c18a15-7465-4996-9b83-ead3ca3fe027.png?resizew=136)
(1)作出
的角平分线,与
交于点D.(尺规作图,并保留作图痕迹)
(2)若
,
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/58c18a15-7465-4996-9b83-ead3ca3fe027.png?resizew=136)
(1)作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c24a968c73e960698a572ab01e3698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解答题-证明题
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【推荐2】如图,
为
的直径,
的顶点D在
上,边
交
于点C.
与
相切;②
;③
是
的平分线中选择合适的两个作为已知条件,余下的一个作为结论,编制一道题目,并完成证明过程;
(2)在(1)的前提下,过点D作
于点F,若
,
,求图中阴影部分的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(2)在(1)的前提下,过点D作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa30a9ee227af2b387cf6e028c20d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd5b23305664d6b645e2e6e2d350bf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b087843e65c72d97fb213668e6ec8bc0.png)
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解答题-作图题
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【推荐1】如图,在
中,点E在
边上,请用直尺和圆规求作一点F,使得
,且F点到
和
的距离相等.(保留作图痕迹,不写作法)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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解答题-作图题
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【推荐2】(1)如图1,已知:
,线段a,用尺规作
,使
.(保留作图痕迹,不写作法)
(2)已知
及C、D两点,如图2所示,C在
外,D在
内,求作一点P,使
且P到
的距离相等(保留作图痕迹).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04e42415fa85c8450b979983dd4a8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14f092fcf284a14d25c0132db43aa347.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed66431681da1db8f7cb0f40cd19201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/2fe8caa2-8c83-4cdc-9ffa-76524d2ea7ee.png?resizew=489)
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