Question

find the value of x ​

Answer 1

Answer:

hey mate here is your answer......

given-- ab = ad, in triangle abd , angle B = angle D(angle opposite to equal sides are equal),angle B = 40° then angle D is also 40° then by angle sum property in triangle abd, angle B + angle D + angle + A = 180°, 40° +40° + angle A = 180° , 80° + angle A = 180° , angle A = 180-80° =100° then angle C + angle A = 180° ( opposite angles of a cyclic quadrilateral are equal) angle C=180-100° =80° hope it will helps you..... mark me as brainliest......