2006-11-26 13:48:20 · 10 answers · asked by MM 1 in Science & Mathematics ➔ Mathematics
Area = pi*r^2 = pi*3^2 = 9pi. Thats 28.27 square feet, approx.
2006-11-26 13:51:18 · answer #1 · answered by stephen m 4 · 1⤊ 0⤋
square feet don't require squares; it's a measure of area. The area of a circle is pi*r^2 where r is the radius or half the diameter. Hence: a) Area = pi * 2.5^2 = 6.25pi square feet b) Area = pi * 4^2 = 16pi square feet
2016-03-29 10:24:33 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The formula for the area of a circle is pir^2.
or: 3.14 times r squared
the radius of this circle would be 9 times 3.14
WHICH EQUALS 28.26
2006-11-26 13:54:19 · answer #3 · answered by Emily 2 · 0⤊ 0⤋
Pi.r^2=3.14*3^2=28.26 ft2
2006-11-26 13:51:34 · answer #4 · answered by mathpath 2 · 0⤊ 0⤋
Area = Pi*r^2 = 3 *3.14^2 = 9*3.14 = 28.274
2006-11-26 13:52:51 · answer #5 · answered by Anonymous · 0⤊ 0⤋
approximately 30 square feet..... roughly
2006-11-26 13:56:46 · answer #6 · answered by teran_realtor 7 · 0⤊ 0⤋
approximately 28.26
2006-11-26 13:54:07 · answer #7 · answered by BMW 1 · 0⤊ 0⤋
28.26 ft. (A=pi*radius^2)
A = 3.14 * 3^2
A = 3.14 * 9
A = 28.26
2006-11-26 13:52:00 · answer #8 · answered by Anonymous · 0⤊ 0⤋
28.28 feet
2006-11-26 14:32:46 · answer #9 · answered by sam 3 · 0⤊ 0⤋
28.3 feet.
2006-11-26 13:51:26 · answer #10 · answered by Patchy O'Squirrel 2 · 0⤊ 0⤋