Mathematics
Junior High

xを求めなさいとゆうやつで最初になぜ110をひくのかがわからないです!

D A 110°: P 60°) C B
= 360°-110°-(360°- (110°+60°)} = 2 (3) Zx=360°-(110°+ZPBA + Z PDA) 三 = 155° A 8

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