Question

Solve for the value of the variables below

Answer 1

80°

Explanation:

First, find the total interior angle by using the formula (n - 2) × 180

In this formula, n = the number of sides.

Find all the missing interior angles.

Add all the interior angles.

Subtract the that value from the total interior angle.

Answer 2

x = 80

Explanation:

degrees in pentagon = 540

120 + 100 + (180-40) + (180-80) + x = 540

120 + 100 + 140 + 100 + x = 540

x = 80