Mathematics
Senior High
Solved
②が解けないです。お願いします
次の問いに答えなさい。
(1) △ABCの外心をOとする。 それぞれについて, x, y を求めなさい。
A
2
A
700
=y+3040+70=180
2g=180-140
B
30%
A
cuo
y
40°
C
2y=40
=20
B
37°
IC
C
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