Question

What is the value of x?



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°

Answer 1

x = 84

Explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5, thus

sum = 180° × 3 = 540°

Sum the interior angles and equate to 540 for x

131 + 108 + 107 + 110 + x = 540, that is

456 + x = 540 ( subtract 456 from both sides )

x = 84