当前位置:首页>免费下载>【免费下载】25-26学年同步培优讲义第2课时 直线与平面垂直的性质(学生版课时跟踪检测

【免费下载】25-26学年同步培优讲义第2课时 直线与平面垂直的性质(学生版课时跟踪检测

  • 2026-02-04 18:58:06
【免费下载】25-26学年同步培优讲义第2课时 直线与平面垂直的性质(学生版课时跟踪检测

2课时直线与平面垂直的性质

1.已知平面α与两条直线l,m,lα,则mlmα

A.充分不必要条件

B.必要不充分条件

C.充要条件

D.既不充分也不必要条件

2.已知m,n为异面直线,m平面α,n平面β.直线l满足lm,ln,lα,lβ,则

A.αβ,且lα

B.αβ,且lβ

C.αβ相交,且交线垂直于l

D.αβ相交,且交线平行于l

3.已知正方体ABCD-A1B1C1D1的棱长为AB1D1到平面BC1D的距离为

A.B.C.D.

4.已知RtEFG的直角顶点E在平面α内,斜边FGα,且FG6 cm,EF,EG与平面α分别成30°和45°角,则FG到平面α的距离是

A. cm B. cm

C.2 cmD.2 cm

5.(多选)(2024·潮州月考如图,PA矩形ABCD所在的平面,则下列结论中正确的是

A.PBBC

B.PDCD

C.PDBD

D.PABD

6.(多选如图,ABCD是矩形,沿对角线BDABD折起到A'BD,且A'在平面BCD上的射影O恰好在CD上,则下列结论正确的是

A.A'CBDB.A'DBC

C.A'CBCD.A'DA'B

7.在长方体ABCD-A1B1C1D1中,EBD,FB1D1,且EFAB,则EFAA1的位置关系是.

8.在长方体ABCD-A1B1C1D1中,AB4,AD3,AA12.则直线AB到平面A1B1C1D1的距离为平面ADD1A1与平面BCC1B1之间的距离为.

9.一条与平面α相交的线段,其长度为10 cm,两端点到平面α的距离分别是2 cm,3 cm,则这条线段与平面α所成角的大小是.

10.斜边为AB的RtABC,PA平面ABC.AEPB,AFPC,E,F分别为垂足,如图.

1求证EFPB

2若直线l平面AEF,求证PBl.

11.如图,设平面α平面βPQ,EG平面α,FH平面α,垂足分别为G,H.为使PQGH,则需增加的一个条件是

A.EF平面α

B.EF平面β

C.PQGE

D.PQFH

12.(多选如图,等边三角形ABC的边长为1,BC边上的高为AD,沿ADABC折起来,则

A.在折起的过程中始终有AD平面DB'C

B.三棱锥A-DB'C的体积的最大值为

C.B'DC60°时,点AB'C的距离为

D.B'DC90°时,点C到平面ADB'的距离为

13.如图,在四棱锥P-ABCD中,已知底面ABCD是矩形,AB2,ADa,PD平面ABCD,若边AB上存在点M,使得PMCM,则实数a的取值范围是.

14.如图,已知AB为圆柱OO1底面圆O的直径,C的中点,点P为圆柱上底面圆O1上一点,PA平面ABC,PAAB,过点AAEPC,交PC于点E.

1求证AEPB

2若点C到平面PAB的距离为1,求圆柱OO1的表面积.

15.(2024·杭州月考ABC,∠ACB90°,AB8,∠BAC60°,PC平面ABC,PC4,MAB边上的一动点,则PM的最小值为

A.2B.7

C.D.

16.如图,在四面体P-ABC中,PA平面ABC,PAAB1,BC2.

1证明BC平面PAB

2在线段PC上是否存在点D,使得ACBD若存在,求出PD的值,若不存在,请说明理由.

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  135. /yingpanguazai/ssd/ssd1/www/yeyulingfeng.com/vendor/topthink/framework/src/think/contract/TemplateHandlerInterface.php ( 1.60 KB )
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  1. CONNECT:[ UseTime:0.000595s ] mysql:host=127.0.0.1;port=3306;dbname=no_yeyulingfeng;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000801s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000272s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000263s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000492s ]
  6. SELECT * FROM `set` [ RunTime:0.000210s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000503s ]
  8. SELECT * FROM `article` WHERE `id` = 462613 LIMIT 1 [ RunTime:0.002721s ]
  9. UPDATE `article` SET `lasttime` = 1770502974 WHERE `id` = 462613 [ RunTime:0.002248s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000229s ]
  11. SELECT * FROM `article` WHERE `id` < 462613 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000682s ]
  12. SELECT * FROM `article` WHERE `id` > 462613 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000374s ]
  13. SELECT * FROM `article` WHERE `id` < 462613 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.009670s ]
  14. SELECT * FROM `article` WHERE `id` < 462613 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000680s ]
  15. SELECT * FROM `article` WHERE `id` < 462613 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.003506s ]
0.091415s