Question

Given : m angle 1 = m angle 2 , m angle 3 = m angle 4 , and m angle A = 84° . Find the measure of m angle BDC . (please give me full solution of this question.)

Answer 1

√A=84
√C=√D=√B bcoz all are m
i.e √A+√B+√C+√D=360
I.e.84+x+x+x=360
ie3x=276
i.e x=276÷3
i.e x=92
√B=√C=√D=92