Question

A new park was designed to contain two circular gardens. Garden A had a diameter 50 m, anf garden B has a diameter of 70 m. How much more edging will be needed for the larger garden than the smaller one?

Answer 1

20pi

Explanation:

C =2pi(r)

Ca = 2 (pi) (25) = 50 pi

Cb = 2 (pi) (35) = 70 pi

70pi - 50pi = 20pi