Question

Help with both please

Answer 1

Explanation:

12. To find the carpet needed. Find the area :

The figure is combination of semi circle and a rectangle.

So Area = Area of semi circle + Area of rectangle

`Area \ of \ semi \ circle = (1)/(2) \pi r^2 = (1)/(2) \pi * 25 = 39.25 \ ft^2 \\\\Area \ of \ rectangle = Length * Breadth = 15 * 10 =150 \ ft^2`

Area = 150 + 39.25 = 189.25 sq ft

13. Cost per square feet = $$9.95

Therefore cost for 189.25 square feet = 9.95 x 189.25 = $1883.04