Question

In a parallelogram ABCD if A = 108 find B, Cand D​

Answer 1

Answer:

Consider a, b, c, d as the vertices of parallellogram

If ABCD is a parallelogram

In parallelogram ABCD

m/_A=108·

m/_C=m/_A=108· (opposite angle of a parallelogram are congruent)

m/_A+m/_B=180 (adjacent angle of a parallelogram are congruent)

108+m/_B=180

m/_B=180-108

m/_B=72

m/_B=m/_D=72 (opposite angle of a parallelogram are congruent)

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