Answer:
x = 50
Step-by-step 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 5 angles and equate to 540
90 + 90 + 160 + x + 150 = 540
x + 490 = 540 ( subtract 490 from both sides )
x = 50
