题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-60992.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-80847.png)
解析
试题分析:连接AC,
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-64326.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-76608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-67799.png)
在
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-13750.png)
CD="12" m,DA="13" m,,AC=5m
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-76608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104307-93984.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-76608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-13750.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-76608.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-13750.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-13750.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104307-95675.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104307-91119.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104307-95675.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104307-91119.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104306-80847.png)
点评:此题难度不大,关键是把不规则图形分割成熟悉的图形(三角形或是矩形等)后再求图形面积。
核心考点
试题【有一块四边形地ABCD,如图,∠B="90°,AB=4" m,BC="3" m,CD="12" m,DA="13" m,求该四边形地ABCD的面积。】;主要考察你对解三角形等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104256-54034.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104252-32888.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104244-43518.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104244-65293.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104244-28499.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104244-65028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104245-92225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104245-52634.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104245-44344.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104245-29210.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104246-14432.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104246-43554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104233-85916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104234-74345.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104234-96032.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104234-42930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104234-53883.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104235-48963.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104235-63404.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104235-85495.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104236-68243.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104236-68326.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104230-72649.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104104230-25595.png)
最新试题
- 1一个做曲线运动的物体,速度v和恒定合外力F的方向可能正确的是( )A.B.C.D.
- 2(10分)如图是一同学测量某导电液体电阻率的实物连线图.图中均匀的长直玻璃管内径为d,里面充满待测导电液体,玻璃管两端各
- 3下列科技成就不符合历史史实的是[ ]A.“医圣”华佗擅长针灸和外科手术 B.张仲景的《伤寒杂病论》全面阐述了中
- 4将一枚质量均匀的硬币连掷1000次,出现有国徽的一面朝上的次数最可能是( )A.355次B.489次C.700次D.8
- 5已知函数f(x)=x3+1,若f(a)=11,则f(-a)=______.
- 6我国政府为减轻农民负担,决定在近年内逐步减免农业税。某乡今年人均上缴农业税25元,若两年后人均上缴农业税为16元,假设这
- 7If this football match can be covered_______, we will know t
- 8(15分)在如图所示的电路中,电阻R1=2Ω,R2=3Ω。当电键K断开时,电流表示数为I1=0.5A。当K闭合时,电流表
- 9It was from only a few supplies that she had bought in the v
- 10民歌中唱到“种下一粒种子,发了一个芽”说明生物 [ ]A.需要营养 B.是变化的 C.能生长
热门考点
- 1先化简,再求值:(3x-2y)-2(x+y-3),其中x=-1,y=12.
- 2生命起源的过程是( )A.无机物→有机物→原始生命B.有机物→无机物→原始生命C.无机物→原始生命→有机物D.原始生命
- 3在下列各组图形中,是全等的图形是( ) [ ]A.B.C.D.
- 4带电粒子以一定的初速度射入某匀强电场中,若不计重力,则带电粒子( )A.一定作匀变速运动B.速度大小可能不变C.速度方
- 5生活中常有这样的说法:乌鸦叫丧,喜鹊报喜;彗星、地震预示国家兴衰;指纹、手相决定人的命运;8是吉利的数字,4是不祥的数字
- 6甲、乙两种物质的质量和体积关系如图所示,由图像可知( )A.B.C.若,则D.若,则
- 7如图,在△ABC中,∠B=90°,M是AC上任意一点(M与A不重合)MD⊥BC,交∠ABC的平分线于点D,求证:MD=M
- 8(6分)全国都在大力提倡“保护母亲河”行动,“富屯溪”就是我们邵武人民的母亲河,它的水质关系到我们千家万户,为了探究水质
- 9下面这段文字画线的三句话,各有一处语病,请加以修改。 人的一生,有三分之一时间在睡眠中度过。①人的健康对于睡
- 10雨天容易发生交通事故的主要原因是:汽车刹车后由于______,继续滑行;车轮与地面的______减小,滑行的距离较远.