题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041536-31588.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041536-99152.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041536-35171.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041536-78489.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041537-71006.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041537-70629.gif)
(1)证明
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041537-34692.gif)
(2)求侧面
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041537-56827.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041537-84251.gif)
(3)求异面直线SC与AB所成角的大小。
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041538-82709.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041538-43419.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041538-31644.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041538-61952.gif)
(3)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041539-69861.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041539-68245.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041539-13998.gif)
核心考点
试题【在三棱锥S中,,,,。(1)证明。(2)求侧面与底面所成二面角的大小。(3)求异面直线SC与AB所成角的大小。】;主要考察你对空间几何体的结构特征等知识点的理解。[详细]
举一反三
19.如图,正方形ABCD和ABEF的边长均为1,且它们所在的平面互相垂直,G为BC的中点.
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041527-37157.gif)
(Ⅱ)求二面角
的正切值.
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041514-56816.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041514-96220.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041514-68984.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041514-27241.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041515-85745.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041515-53163.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041515-60971.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041515-60284.gif)
(1)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041515-68967.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041516-92151.gif)
(2)求三棱锥
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041516-84715.gif)
(3)试在
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041516-80435.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041516-74119.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041517-18719.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041516-92151.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041517-57687.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041504-62577.gif)
(1)求VC与平面ABCD所成的角;
(2)求二面角V-FC-B的度数;
(3)当V到平面ABCD的距离是3时,求B到平面VFC的距离.
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041504-15676.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041455-84907.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041455-52964.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041455-65026.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041455-84907.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041455-34144.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041456-28550.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041456-32352.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041456-20483.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041456-38276.jpg)
⑴求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041457-94108.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041457-86982.gif)
⑵求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041457-38009.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041457-86982.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041445-36021.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041446-24415.gif)
(1)证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041446-24658.gif)
(2)证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041446-24658.gif)
(3)求
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041446-97499.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041446-42721.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191021/20191021041447-42382.jpg)
最新试题
- 1图为北半球两高山垂直植被分布图,两山地南坡山麓地带气候类型不同。读图完成下列各题。小题1:造成两山地南坡山麓地带气候类型
- 2— ________ for the glass! —It’s OK. I’m wearing shoes. A.Loo
- 3近似数0.07010的有效数字个数有( )A.3个B.6个C.5个D.4个
- 449的平方根是( )。
- 5我国纬度最高的盆地是( ) A.四川盆地B.塔里木盆地C.准噶尔盆地D.柴达木盆地
- 6----Who’s the man sitting under the tree? ----I don"t ___ th
- 7I don’t know if he _____ tomorrow. If he _____, I’ll go to s
- 8已知函数,若f(f(0))=4a,则实数a=( )。
- 9一个物体从某个高度做自由落体运动,它在第1s内的位移恰好等于它最后1s内位移的1/4,取g=10m/s2,求:(1)第1
- 10下列各句中加粗的成语使用恰当的一句是[ ]A.在这次追捕贩毒分子的行动中,广州公安干警暴虎冯河,与贩毒分子进行激
热门考点
- 1先化简,再求值:当x=﹣1时,=( )。
- 2已知变量呈线性相关关系,回归方程为,则变量是( ) A.线性正相关关系B.由回归方程无法判断其正负相关C.线性
- 3已知x2-2kx+4能用完全平方公式分解因式,则k=( )。
- 4The pen is ______ . She wrote _______ name with it ________.
- 52010年12月7日,山东首个省级大型网络问政平台齐鲁民声正式上线公测。即日起,网友可以通过此平台咨询政策、提出意见、反
- 6如图,ABCD是正方形,M是BC中点,将正方形折起,使点A与点M重合,设折痕为EF,若正方形面积是64,那么梯形AEFD
- 7下面新闻材料中划横线处的文字顺序已经打乱,请调整顺序,把序号写在题后横线上,使前后句意贯通。(4分)马来西亚代交通部长希
- 8下列A、B、C、D四幅图中,哪一幅是左图平移后得到的( )A.B.C.D.
- 9Kate with her parents often __________ to a movie on weekend
- 10如图是甲、乙两物体运动的路程S和时间t的关系图象,由图可知两物体运动的速度关系是( )A.v甲>v乙B.v甲<v乙C.