Mathematics
Senior High
工夫した解き方(補助線→接弦定理以外の)をある限り教えて欲しいです🙇♀️
答えは、θ＝70°です
問題
下の図において,角0を求めよ。ただし,DA= DC とする。
D
0
B
552
T-
A
AT は円の接線
Answers
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