How many square feet in a 10 foot circle?

Answer 1

113 sq. ft. is the area of a 12 foot diameter circle.

Answer 2

Area of a circle = pi*r^2

Radius = r = d/2

In this question, d=12

So,

r = 6

Area of a circle = 6^2 *pi = 36*pi sq. ft

Answer 3

Circumferance = 2 X Pi X Radius (C = 2 X Pi X R) So R = C / (2 X Pi) Area = Pi X R2 So Area = Pi X (C / (2 X Pi))2 = 3.14 X (20 / (2 X 3.14))2 = 31.9 square foot

Answer 4

to answer this, use the formula, (pi)r^2. This gives you the answer 25(pi) or 78.54.

Answer 5

If the diameter is 18 feet then the area is about 254.469 ft².

If the radius is 18 feet then the area is about 1017.876 ft².

Answer 6

C = 11 so D = 11/pi, making R = 11/2pi. A = 121/4 pi2 x pi = 121/4 pi = 30.25/pi

= about 9.6 sq feet

Answer 7

452.39 square feet.

Answer 8

25

Answer 9

100