Question

In quadrilateral ABCD m∠A = x, m∠B = 2x, m∠C = 3x, and the m∠D = 4x. Find the value of x and state which pair of sides ABCD must be parallel.

Answer 1

if the value of angleA= x , angleB=2x , angle C=3x and angle D=4x . the value of x is 36 degree