题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000431-19288.png)
答案
∴CG=AG=
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000432-63604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000431-19288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000432-15517.png)
∵∠DBC="90º," BG⊥DC
∴∠CBG+∠DBG="90º," ∠C+∠CBG=90º
∴∠C=∠DBG
∵∠BGC=∠BGD=90º
∴△CBG∽△BDG ------------------------4分
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000432-11795.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000432-70429.png)
∴DG=9 -----------------------5分
∴AD=AG-DG="7 " --------------------------6分
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000419-82391.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000419-86800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000419-33488.png)
小题1:(1)请你按下列要求画图:
① 联结
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000423-23395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000423-65944.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000424-13573.png)
② 在
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000424-18027.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000424-54724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000426-71566.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000426-68361.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000426-99123.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000426-97949.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000419-33488.png)
小题2:(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000426-72304.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000423-23395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000426-17341.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000426-84476.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000427-28028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000427-85053.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000427-24178.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000410-16411.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000410-38083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000411-74976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000411-14556.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000411-80591.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000412-70128.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000412-74099.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000411-14556.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000412-78044.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000412-77514.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000413-44924.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000411-14556.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000413-66461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000413-77813.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000413-96767.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000413-99585.png)
小题1:(1)求出
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000413-96767.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000413-66461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000413-66461.png)
小题2:(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000413-66461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000414-49230.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000414-25861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000404-20733.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000405-57937.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000405-73017.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000405-57810.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000405-57937.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000406-59808.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000406-22612.png)
则第一个黑色梯形的面积
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000406-54177.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000406-20667.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000407-61444.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000357-80736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000357-89587.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000401-15277.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000346-67908.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000346-41365.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000346-19292.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000346-52725.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000346-71549.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000346-41801.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000347-34144.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000347-66896.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000347-34144.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000347-44118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000347-45264.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000347-17596.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000347-44441.png)
小题1:(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000347-44118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000346-41801.png)
小题2:(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000348-77214.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000348-13711.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000348-17406.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000348-72233.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000348-13711.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191103/20191103000348-72233.png)
最新试题
- 1一支足球队每场比赛获胜(得3分)的概率为a,与对手踢平(得1分)的概率为b,负于对手(得0分)的概率为c(a,b,c∈(
- 2张先生打算用5万元进行投资。他没有医疗保险,希望在这方面有所投入。除此之外,他还想选择风险较小的其他投资方式。比较适合张
- 3化简:32-8+212.
- 4在线性回归模型y=bx+a+e中,下列说法正确的是( )A.y=bx+a+e是一次函数B.因变量y是由自变量x唯一确定
- 5依次填入下列各句横线处的词语,最恰当的一组是[ ]①2010年3月,全国人大代表和政协委员都聚集北京,共商___
- 6为了解一片大约一万株树木的生长情况,随机测量了其中100株树木的底部周长(单位:㎝).根据所得数据画出的样本频率分布直方
- 7________ we don’t lose hope, there is still a chance for us
- 81922年,孙中山说:“中华民国就像我的孩子,他现在有淹死的危险。……我向英国和美国求救,他们站在岸上嘲笑我。”为改变这
- 9番禺区正在实施的智慧教育云(电子书包)项目,以基于网络的双课堂创新教学实践为突破口,充分发挥虚拟课堂与现实课堂整合的优势
- 10依次填入下列两句横线处的语句,与上下文语意连贯、音节和谐的一组是[ ](1)大漠长风,驱车万里,历时一个半月,西
热门考点
- 1十届全国人大二次会议以赞成票2863票、反对票10票、弃权票17票的表决结果通过了《中华人民共和国宪法修正案》。由此可见
- 2When I heard the good news, I was _____ happy _______ say a
- 3据统计,我国每年有28.7万人自***,200万人自***未遂,每两分钟就有1人自***,8人自***未遂。为避免悲剧再次发生,小明提出
- 4为了限制草履虫运动,在观察草履虫时应在载玻片的培养液上( )A.把水吸干B.多滴加清水C.滴加盐水D.放少量棉花纤维
- 5(8分)如图所示,静止在水平面上的物体,所受重力为200N,物体和水平面之间的动摩擦因数μ=0.1,最大静摩擦力与滑动摩
- 6十八届三中全会明确提出,以经济体制改革为重点,发挥经济体制的牵引作用。十一届三中全会以来,在经济体制改革方面的突破有①农
- 7如果直线与圆有公共点,则实数a的取值范围是_________.
- 8对于外来文化,我们应持态度是 [ ]A、应批
- 9化简的结果是( )A.a + 1B.C.D.a – 1
- 10根据所给中文意思完成句子,每空限填一词。 1. 我叫醒了大明,让他早点起床。 I _____ _____ Dam