Question

Find the value of X in the trapezium ABCD given below.

Answer 1

Step-by-step explanation:

20 is the value of x

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Answer 2

Step-by-step explanation:

In the given figure, AB and DC are parallel and are cut by a transversal

We know that,

Sum of co-interior angles = 180°

Angle A + Angle D = 180°

(x-20)°+(x+40)° = 180°

x-20+x+40 = 180

x+x-20+40 = 180

2x+20 = 180

2x = 180-20

2x = 160

x = 160/2

x = 80

The value of x is 80°