Question

(Urgent) Worth 10 points 7.3

Answer 1

`2228 \: {ft}^(2)`

Explanation:

Required flooring cover

= Area of the school playground

= Area of square with side 40 ft + Area of semicircle with radius (40/2) i.e. 20 ft

`= {(40)}^(2) + (1)/(2) * 3.14 * {(20)}^(2) \\ \\ = 1600 + (1)/(2) * 3.14 * 400 \\ \\ = 1600 + 3.14 * 200 \\ \\ = 1600 + 628 \\ \\ = 2228 \: {ft}^(2)`