find the value of x.

Explanation:

Step1: Recall angle - sum property

The sum of interior angles of a triangle is 180°. So, 88°+62°+x = 180°.

Step2: Simplify the left - hand side

88 + 62+x=180, 150 + x=180.

Step3: Solve for x

Subtract 150 from both sides: x=180 - 150.

Answer:

30