题目内容
如图,BC∥DE,∠1="100°," ∠AED="65°," 则∠A的大小是( )
A.25° | B.35° | C.40° | D.60° |
B
∵BC∥DE,∴∠EDB=∠1=100°,∵∠EDB=∠AED+∠A
∴∠A=∠EDB-∠AED=100°-65°=35°.故选B.
∴∠A=∠EDB-∠AED=100°-65°=35°.故选B.
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题目内容
A.25° | B.35° | C.40° | D.60° |