Question

in the adjacent figure ABCD is a square and triangle APB is an equilateral triangle.prove that APD is congruent to BPC

Answer 1

simple in ADP and BPC
AD =BC
AP=BP
angle DAP=ANGLE CBP = 30
SAS RULE FOR CONGRUENCE

Answer 2

in triangle dpc and bpc Ap is parallel to bp ad is parallel to bc by sss congruency triangle apd is congruent to bpc