A polygon which has all its sides of equal length and all its angles of equal measures is called a regular polygon. ... Therefore, a regular pentagon is a regular polygon. Irregular polygon: A polygon which has all its sides of unequal length and all its angles of unequal measures is called an irregular polygon.
Step-by-step explanation: A polygon which has all its sides of equal length and all its angles of equal measures is called a regular polygon. ... Therefore, a regular pentagon is a regular polygon. Irregular polygon: A polygon which has all its sides of unequal length and all its angles of unequal measures is called an irregular polygon.