Question

49 ft 20 ft 92 ft Reggie's family is planning to put an above ground swimming pool in ñeir back yard. Their yard is a 49 i by 92 it rectangle and the pool will be a circle with a diameter of 20ft. as shown above. They wil fill the rest of their yard with grass. Approximately how many square feet of their yard will be grass? (A=nr and n=314) A.4800 ft2 B.4200 ft C.3400ft D.2100ft2

Answer 1

the Area of the yard filled with grass = Area of rectangle - Area of the circle

Area of the rectangle = L x B = 49 x 92 = 4508 ft^2

Radius of the circle = 20/2 = 10ft

Area of the circle = pie x r x r = 3.14 x 10 x 10 = 314 ft^2

Area of the yard with grass = 4508 ft^2 - 314 ft^2

= 4194 ft^2

Which is approximately 4200ft^2