Question

prove that x=y in the problem

Answer 1

in triangle abc,
AB=AC,
ANGLES OPPOSITE TO CONGRUENT SIDES ARE CONGRUENT
ANGLE ABC CONGRUENT TO ANGLE ACB
BUY ANGLES IN LINEAR PAIR THEOREM,
ANGLE ABC + X= 180 (1)
ANGLE ACB + Y= 180
angle abc and angle ACB are cancelled for concurrent,
Hence X equal to 180 degree and Y equal to,

therefore X equal to y are proved

Answer 2

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