calculate the area of the base of a fountain if the distance from the center of the fountain to the edge of the base is 10 ft.
a) 314 sq. ft.
b)414 sq. ft.
c)514 sq. ft
d)614 sq. ft.
2007-03-13 03:42:54 · 4 answers · asked by kim l 1 in Science & Mathematics ➔ Mathematics
The radius of the base is 10 feet.
For this problem we shall take pi = 3.14
Area of base = (pi) * (radius)^2
= 3.14 * (10)^2
= 3.14 * 100
= 314 sq. ft
The answer is:
a)314 sq. ft
2007-03-13 04:00:57 · answer #1 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 0⤋
formula for area of a circle (base) of a fountain is"
a = (pi) r^2
hence:
a = (3.14) (10^2)
a = 314 sq ft.
2007-03-13 10:55:48 · answer #2 · answered by schatz101 3 · 1⤊ 0⤋
You use A=pi*r^2 to calculate the area of a circle. The distance that they gave you is the radius. Just plug it in and get the answer.
2007-03-13 10:53:25 · answer #3 · answered by iceman30906 4 · 0⤊ 0⤋
aint you gotta use pie or cornbread or sumthing whats that formula e=mc squared naw pi i 3.14 then area from center of circle is 10 then 3.14 x 10 314? I dont know I flunkled math
2007-03-13 10:53:11 · answer #4 · answered by Anonymous · 0⤊ 2⤋