Science and Mathematics for Engineering 6th Edition by John Bird

تمرين 5

A rectangular park measures 150 m by 70 m. A 2 m flower border is constructed round the two
longer sides and one short side. A circular fish pond of diameter 15 m is in the centre of the park
and the remainder of the park is grass. Calculate, correct to the nearest square metre, the area of
(a) the fish pond, (b) the flower borders, and (c) the grass.