Question

find the value of x in the trapezium abcd

Answer 1

formula for trapezium

1/2×d1 +d2×h

there must be another value in the question

Answer 2

Since ABCD is trapezium

AB||CD

So, Angle A + Angle D = 180° [alternate interior angles]

x-22+x+42 = 180

2x + 20 = 180

2x = 180 - 20

2x = 160

x=80