Mathematics
Junior High
Resolved
求解 拜託
D
(C)268°
(D) 264°
(B)12. 已知(1為正n邊形的一個內角,<2為正2n邊形的
四
2
一內角,若∠1=
-∠2,則n=
3
(A) 10=252
(B) 8
A
(C) 6
(D) 4
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