A regular pentagon must have five congruent sides, five congruent interior angles, and congruent exterior angles: five congruent sides (sides of equal length) five congruent interior angles (each measuring 108° ) five congruent exterior angles of 72°
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Regular Pentagons
A regular pentagon must have five congruent sides, five congruent interior angles, and congruent exterior angles: five congruent sides (sides of equal length) five congruent interior angles (each measuring 108° ) five congruent exterior angles of 72°