Step-by-step explanation:
A polygon whose all sides are equal is called a regular polygon . For example -
Square - Regular polygon of four sides .
Regular Pentagon - Regular polygon of five sides.
Regular Hexagon - Regular polygon of six sides .
Regular Heptagon - Regular polygon of seven sides.
Regular Octagon - Regular polygon of eight sides.
Regular Nonagon - Regular polygon of nine sides.
Regular Decagon - Regular polygon of ten sides.
Formula to find the area of regular polygon is :
[tex]\large{\boxed{\red{\bf Area_{polygon}=\dfrac{1}{2}\times(perimeter)\times(apothem)}}}[/tex]
