如图,在菱形
中,连接
,过B作
交
于点E,过D作
交
于点F.
;
(2)若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f26f8a79eab3a1a92dd7c7b835ed584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cebee623ba7d2033c94c503e4a4c699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e2758611194cb0a19d367c8ebbddd70.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bdf82f2b3ac77ee7b9b35aebe0dd83f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
更新时间:2024-05-20 20:58:27
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】如图,在下列6 × 6的坐标系网格中,横、纵坐标均为整数的点叫做格点,例如A(0,4)、B(4,4)、C(4,0),E(4,3)都是格点,按要求在图中仅用无刻度的直尺画图,并回答问题.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/5/35537146-cf02-451b-ba17-b82e1a8ec6bc.png?resizew=190)
(1)画格点M,连接AM,使AM⊥AE,写出点M的坐标为_________;
(2)画格点G,连接AG,使AG平分∠MAE,写出点G的坐标为_________;
(3)在x轴上找一点F,连EF,使得AE平分∠BEF,并说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/5/35537146-cf02-451b-ba17-b82e1a8ec6bc.png?resizew=190)
(1)画格点M,连接AM,使AM⊥AE,写出点M的坐标为_________;
(2)画格点G,连接AG,使AG平分∠MAE,写出点G的坐标为_________;
(3)在x轴上找一点F,连EF,使得AE平分∠BEF,并说明理由.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】问题1:如图①,在四边形ABCD中,
,P是BC上一点,
,
.易得
.(不需证明)
问题2:如图②,在四边形ABCD中,
,P是BC上一点,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/ad6c78c1-7d6d-4e82-9512-cb28e539a1ab.png?resizew=336)
(1)求证:
;
(2)若
,求
与
的面积和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d8397018b0a01a1b4e9574604f9e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62974d34de3a12418d6b700420afd1b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c5ace226a547e68702df548b08cb5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04892e0e51e046ffd00ef5c0dc99341a.png)
问题2:如图②,在四边形ABCD中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1e39bfb2f4be18735fc76997a96582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62974d34de3a12418d6b700420afd1b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c5ace226a547e68702df548b08cb5a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/30/ad6c78c1-7d6d-4e82-9512-cb28e539a1ab.png?resizew=336)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d99c32010454333ca6066b003854e42e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐1】如图,在菱形ABCD中,对角线AC,BD交于点O,AE⊥BC交CB延长线于点E,CF∥AE交AD延长线于点F.
(1)求证:四边形AECF是矩形;
(2)连接OE,若BD=10,AD=13,求线段OE的长.
(1)求证:四边形AECF是矩形;
(2)连接OE,若BD=10,AD=13,求线段OE的长.
![](https://img.xkw.com/dksih/QBM/2021/6/6/2737382836912128/2783726251630592/STEM/182d9f7d-6f2e-4b90-9266-a6c7b86e779c.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐2】在菱形ABCD中,点E为对角线BD上一点,点F,G在直线BC上,且BE=EG,∠AEF=∠BEG.
(1)如图1,求证:△ABE≌△FGE;
(2)如图2,当∠ABC=120°时,求证:AB=BE+BF;
(3)如图3,当∠ABC=90°,点F在线段BC上时,线段AB,BE,BF的数量关系如何?(请直接写出你猜想的结论)
(1)如图1,求证:△ABE≌△FGE;
(2)如图2,当∠ABC=120°时,求证:AB=BE+BF;
(3)如图3,当∠ABC=90°,点F在线段BC上时,线段AB,BE,BF的数量关系如何?(请直接写出你猜想的结论)
![](https://img.xkw.com/dksih/QBM/2018/2/7/1877063742365696/1890762208108544/STEM/e8d724d0-81a3-4f5d-8916-8a6eae54b0bf.png)
您最近一年使用:0次