Question

Identify each polygon and classify it as regular or irregular. Explain.

A pentagon has 5 equals sides and 5 equal angles measuring 108 degrees.
A parallelogram has a base measuring 10 and a height measuring 4.
A four-sided, polygon has 2 sides that measure 18, and 2 sides that measure 25. It has two angles that measure 86.5 degrees, an angle that measures 74 degrees, and an angle that measures 113 degrees.

Answer 1

The pentagon is a regular polygon because it has 5 equal sides and 5 equal angles.
The parallelogram is an irregular polygon because it does not have equal sides or angles.
The four-sided polygon is an irregular polygon because it does not have equal sides or angles.