如图,在
中,
,
,
,以点A为圆心,任意长度为半径画弧,分别交
于点M、N,再分别以点M、N为圆心,大于
的长为半径画弧,两弧交于点O,连接
并延长交
于点D,以
为边作平行四边形
,则平行四边形
的面积是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28f9fc63aeaac7f7e359f1bcd734a90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a81d63da32eb9501a0099ee7fd8df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86cae7cc6665dc8edfb9060075b3afb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94e1ca12da27075e5241b7c7ce74672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945e93c9f3515ded840de09a9ba81ce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945e93c9f3515ded840de09a9ba81ce8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/5/65684663-e487-4c01-8964-caa66032d2fb.png?resizew=144)
22-23八年级下·四川达州·期末 查看更多[2]
更新时间:2023-07-17 12:29:54
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【推荐1】如图,△ABC外的一点P到三边所在直线的距离相等,若∠BAC=80°,则∠CPB=___ °.
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【推荐2】如图,等腰直角三角形ABC中,∠BAC=90o,BD平分∠ABC交AC于点D,若AB+AD=8cm,则底边BC上的高为___________ .
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【推荐1】如图,在
中,按如下步骤操作:①以点A为圆心,AB长为半径画弧交AD于点F;②再分别以点B、F为圆心,大于
的长为半径画弧,两弧交于一点P;③连接
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于点
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【推荐2】如图,在矩形
中,
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为圆心,适当的长为半径画弧,交
于
两点;再分别以
为圆心,大于
的长为半径画弧,两弧交于点
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【推荐1】若等边
内一点P到三边的距离分别为3,4,5,则
的面积为______ .
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【推荐2】如图,在△ABC中,∠C=90°,AC=12,BC=5,D是边AB的中点,点E在边AC上,将△ADE沿DE翻折,使得点A落在点A′处,当直线A′E⊥AB时,A′B=____ .
![](https://img.xkw.com/dksih/QBM/2021/11/17/2853120585179136/2854420725252096/STEM/fca550cbae09424aa133cf16bf76d16b.png?resizew=189)
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【推荐1】如图, 在平行四边形
中,
在
上, 若
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__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【推荐2】如图,平行四边形ABCD的对角线交于点O,∠ABC=120°,AB=6,BC=13,将
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