A circle has an area of 256pi. What is the diameter of the circle?
Circle Area = PIr^2
Circle Area = PI 256
radius = sq root(256)
radius = 16
diameter = 32
The area of the circle is \(256\pi\), the diameter will be \(32\).
A circle is a closed \(2D\) figure in which the set of all the points in the plane are at equal distance from the given point called “center”.
Diameter is defined as a straight line that goes from one side to the other of a circle, passing through the center.
Area of the circle \(=\pi r^{2}\)
We have,
Area of the circle \(=256\pi\)
Comparing it with above formula,
\(\pi r^{2} = 256\pi\)
\(r^{2} =256\)
\(r=16\)
We have,
Diameter is two times of radius.
So,
Diameter \(=2*16=32\)
Hence, we can say that the Diameter of the circle is \(32.\)
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