Question

Find the value of x.

Answer 1

Explanation:

Angle sum of a triangle = 180°. So we get:

`62+69+(4x+5)=180`

`136+4x=180`

`4x=44`

`x=11`°

Answer 2

x = 11

Explanation:

We know that the sum of the interior angles in a triangle is added up to 180°.

Accordingly,

62 + 69 + 4x + 5 = 180

Combine like terms.

136 + 4x = 180

Subtract 136 from both sides.

4x = 180 - 136

4x = 44

Divide both sides by 4.

x = 11