Answer:
x = 138°
Explanation:
the sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
here n = 6 , then
sum = 180° × (6 - 2) = 180° × 4 = 720°
sum the interior angles and equate to 720°
x + 85° + 135° + 125° + 85° + 152° = 720°
x + 582° = 720° ( subtract 582° from both sides )
x = 138°