3main. 4th and 6 question
plzz help
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Join TO, triangles TPO And TQO are congruent
Because TP=TQ, OP=PQ and TO is common side.angle PTO+TOP=90
Angles QTO+TOQ=90
Angles PTO+QTO+TOP+TOQ=180
AnglesPTQ+POQ=180
But angles POQ+OPQ+OQP=180
Angle PTQ=OpQ+OQP, angleOPQ=OQP
AnglePTQ=2 angle OPQ
Because TP=TQ, OP=PQ and TO is common side.angle PTO+TOP=90
Angles QTO+TOQ=90
Angles PTO+QTO+TOP+TOQ=180
AnglesPTQ+POQ=180
But angles POQ+OPQ+OQP=180
Angle PTQ=OpQ+OQP, angleOPQ=OQP
AnglePTQ=2 angle OPQ
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