2007-03-18 01:00:53 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
100/3.14=about 31.85
Square root of 31.85 = about 5.64 (radius)
5.64 x 2 = 11.28
The diameter of a circle that is 100 square meters is about 11 meters and 28 cm. (100cm = 1 meter)
Hope that helps!!
2007-03-18 01:09:08 · answer #1 · answered by BlueSmiley 3 · 0⤊ 0⤋
Area of a circle formula
A = Ï r²
A / Ï = r² . . .Use this formula
100 / 3.141592654 = r²
31.83098862 = r²
â31.83098862 = âr²
5.641895836 cm = r
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Multiply 5.641895835 times 2 to get diameter
5.641895835 x 2 = 11.28379167 cm
The diameter is 11.28 cm rounded to two decimal places.
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2007-03-18 03:46:25 · answer #2 · answered by SAMUEL D 7 · 0⤊ 0⤋
Diameter =11.28 meters.
2007-03-18 01:16:31 · answer #3 · answered by shiva_kc_123 2 · 0⤊ 0⤋
area of a circle = (pi)(radius^2)=(pi)r^2
but d=2r
r=d/2
sudstitute area in the above formula
100=(pi)(d/2)62
you solve to get diameter=11.3m
2007-03-18 01:14:42 · answer #4 · answered by Rishi 1 · 0⤊ 0⤋
10 under root 7
2007-03-18 01:08:18 · answer #5 · answered by vishwa 4 · 0⤊ 0⤋
A = pi r^2 ==> r= sqrt(A/pi) == sqrt(100/3.14) = 5.64
Dia = 2 x r = 11.28
2007-03-18 01:12:32 · answer #6 · answered by physicist 4 · 0⤊ 0⤋
S=Pi*r^2 ==> S=Pi*(d^2)/4
==> d=sqrt(4S/Pi)
=sqrt(400/Pi)
=20/sqrt(Pi)
2007-03-18 01:12:00 · answer #7 · answered by nhacuaan2003 2 · 0⤊ 0⤋
Area = pi(D^2)/4
D = sqrt of [4(Area)/pi]
D = sqrt of (400/3.1416)
D = sqrt of (127.324)
D = 11.284
2007-03-18 01:26:53 · answer #8 · answered by exo 7 · 0⤊ 0⤋