Question

Find the area of the polygons

Answer 1

The formula to calculate the area of a regular polygon is, Area = (number of sides × length of one side × apothem)/2, where the value of apothem can be calculated using the formula, Apothem = [(length of one side)/{2 ×(tan(180/number of sides))}].

Answer 2

a)7.5cm b)20cm

Explanation:

a) ½base times height

b) base times height