Find the radius of a circle with an area of 27 pie cm
2 answers:
Area of a circle is = PI x r^2
Area = 27 PI
This means the radius would be the square root of 27:
√27 = 3√3
The answer is F.
Answer:
F 3 sqrt(3)
Step-by-step explanation:
The area of a circle is given by
A = pi*r^2
We know the area is 27*pi
27 *pi = pi*r^2
Divide each side by pi
27 *pi/pi = pi/pi*r^2
27 = r^2
Take the square root of each side
sqrt(27) = sqrt(r^2)
sqrt(9*3) = r
sqrt(9) sqrt(3) = r
3sqrt(3) =r
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