Question

pls help me find the answer​

Answer 1

Answer:

The value of x is 40 degree.

Answer 2

As it is a right angled ∆, angle B = 90°

using angle sum property of ∆,

angle A = 40°

now using exterior angle property of ∆ ADE,

4x° = 3x° + angle A

=> 4x° = 3x° + 40°

=> 4x° - 3x° = 40°

=> x = 40° option B