二十六年单身
幼苗
共回答了15个问题采纳率:93.3% 举报
1.设 AB = 2x,BC = 3x,CD = 4x,
∵ CD = 6,∴ x = 1.5
∵ 点P是AD的中点 ∴ AP = PD = 4.5x
∴ PC = PD - CD = 0.5x = 0.75
2.∵ ∠AOD = ∠BOD+100°
∴ ∠AOD = 140º,∠BOD = 40°
∵ 射线OE平分∠COB
∴ ∠COE = (1/2) ∠ COB = (1/2) ∠ AOD = 70º
∴ ∠ AOE = ∠AOC + ∠ COE = 40º+70º = 110º
1年前
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