Forgot password?
 Create new account
View 211|Reply 0

[几何] 一道解三角形题目

[Copy link]

93

Threads

88

Posts

983

Credits

Credits
983

Show all posts

aishuxue Posted at 2023-4-10 20:34:25 |Read mode
Last edited by hbghlyj at 2025-4-8 04:55:35

四边形 $A B C D$ 中,$D C=2 A D=4 \sqrt{2}, \angle B A D=\frac{\pi}{2}, \angle B D C=\frac{\pi}{6}$.
(1)若 $\tan \angle A D C=3 \sqrt{3}$,求 $A B$.
(2)若 $\angle A D C=\angle C$,求 $B C$.
这题从纯几何的角度可否分析?

手机版Mobile version|Leisure Math Forum

2025-4-20 22:14 GMT+8

Powered by Discuz!

× Quick Reply To Top Return to the list