Mathematics
SMA

我唔识得点样做

共圆 同弓形,内的圆周角的逆定理。 对角互补 外角=内对角。
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Answers

ㄥAPB=90(ㄥin semi-circle)
ㄥPBA=ㄥMBO(common ㄥ)
ㄥBMO=ㄥBAP(ㄥsum of triangle)
A,O,M,P is concyclic (converse of ㄥin the same segment)
ㄥBAP=28(ㄥin the same segment)
OA=OP(radio)
ㄥOPA=28(baseㄥ,Isos triangle)

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