# The bisector of angle A and angle B meet at a point P. If angle C=100° and angle D=60° ,find the measure of angle APB.

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180°+(-c-d/2)+angle apb=180°

angle apb=c+d/2

now putting the value of c and d

apb=100°+60°/2

apb=160°/2

apb=80°