Answer:
x = 118
Explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 5 , then
sum = 180° × 3 = 540°
Sum the interior angles and equate to 540
89 + 117 + 157 + 59 + x = 540 , that is
422 + x = 540 ( subtract 422 from both sides )
x = 118