Mathematics
Senior High
Solved
3問とも教えてください
2例 次の図の△ABCにおいて, AD が ∠Aの二等分線である。 xの値を求めなさい。
(1)
(2)
A
(3)
A
12
16.
B
DxC
B---9- D
12----C
B
DC
10.-
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