Question

The circus has several large circular tents. The floor of each tent has a circumference of 188.4 feet. The radius of the floor is -Select- ft. The area of the the floor is -Select- ft2.

Answer 1

Explanation:

Circumference = pi * d but you should know that d = 2r , so this becomes

Circumference = pi 2 r

188.4 ft = pi * 2 * r divide both sides by pi * 2 to get

r = ~ 30 ft

Area = pi r^2

Area = pi * ( 30ft)^2 = ~ 2827 ft^2