Question

a pentagon is a regular pentagon that has 5 sides, so each side has the same length that is (x - 1.5)cm. The perimeter is 22.5 centimeters. What is the value of x?

Answer 1

Explanation:

5(x - 1.5) = 22.5

5x - 7.5 = 22.5

5x = 15

x = 3