Answer:
540°
Explanation:
A polygon with 5 sides is a pentagon. For easier shapes like pentagons, there are angle rules. For pentagons, it is that the angle measures of the interior will always add up to 540 degrees.
the sum of the interior angles of a polygon is calculated as
sum = 180° (n - 2 ) ← n is the number of sides here n = 5 , then
sum = 180° × (5 - 2) = 180° × 3 = 540°
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