Question

A circular pond of radius 6m is surrounded by a path of width 1m.

a) Find the area of the path.
b) The path is resurfaced with Astroturf which is bought in packs each containing enough to cover an area of 7cm (squared). How many packs are required?

Answer 1

Area of pond=pi X 6×6
Area of pond=113.1 square metres
Area of pond and path combined=pi X 7×7
Area combined=153.9 square metres
Area of path=area of both=area of pond=40.8square metres.
Six bags are needed