Mathematics
Junior High
Solved
3,4番の求め方を教えて下さい。よろしくお願いします
B
x=60
A
60°
38°
(3) BC=CD=DE=EA,
ZACB=120°
450
X
y
E
x C
D
C
-120°
YAB
y
B
46°
(4) BC は, 円 0 の直径
A
BY
214180 +421(+9 = 180
Q+Yz
次の図で,二等辺三角形を見つけていいなさい。
(1)
X
52°
C
y
(2) ZABD=/ CBD
=ZACE=/ BCE
B
C
60+ ro
29
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