A pentagon is a plane figure bounded by five straight lines. It does not equal 180 of anything.
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Because , for a regular pentagon, the sum of the interior angles of a pentagon = (5-2)*180 = 540 degrees.
Pentagon ,,,, 180 digr
A single internal angle in any regular polygon is equal to ((n - 2) x 180) / n, where n is the number of sides in the polygon.In the case of a pentagon, a single internal angle is equal to ((5 - 2) x 180) / 5 = (3 x 180) / 5 = 540 / 5 = 108 degrees.
A pentagon is a five-sided polygon. The sum of the angles of the pentagon is: 180(n - 2) = 180(5 -2) = 180(3) = 540 degrees.
pentagon has five equal sides