I got 8.5. Is that RIGHT????
2007-05-23 09:21:19 · 5 answers · asked by Claire P 1 in Science & Mathematics ➔ Mathematics
pir^2=26.78
so r=sqrt(26.78/pi)=2.92ft
2007-05-23 09:24:31 · answer #1 · answered by bruinfan 7 · 1⤊ 0⤋
area=pi*radius^2
26.78=pi*radius^2
radius = sqrt(26.78/pi) = about 2.92
ohh, next time you wanan check if you are correct.. just go back to the original equation..
area=pi*radius^2
plus in radius and calculate what area is..
for your answer...area=pi*(8.5)^2
area = 226.98
area = pi*(2.92)^2 = 26.786475601568013068427882543194
2007-05-23 16:28:40 · answer #2 · answered by Sum Girl 4 · 0⤊ 0⤋
A=(pi)(r^2)
26.78=(3.14)(r^2)
8.53=r^2 (take the square root)
2.92=r
2007-05-23 16:26:06 · answer #3 · answered by John C 2 · 1⤊ 0⤋
Area=Pi x r^2
26.78 = 3.14 x r^2
r^2 = 26.78/3.14
r= Sqrt(26.78/3.14) = 2.92 ft
2007-05-23 16:26:38 · answer #4 · answered by Jason S 3 · 1⤊ 0⤋
A = pi*r^2
26.78/pi = r^2
sqrt(26.78 / pi) = 2.91964703
2007-05-23 16:24:48 · answer #5 · answered by Bleh7777 2 · 1⤊ 0⤋