Considering the definition of circumference of a circle, the circumference of a circle with a radius of 28 m is 175.93 m.
A circumference is a flat, closed, curved line whose points are the same distance from an interior point called the center.
The circle is the surface of the plane bounded by the circumference. That is, it is formed by all the points of the circumference and all the points of the plane inside it.
So, the circumference of a circle defines the length of the circle's outline. The circumference is also called the perimeter of the circle, because it is a measure of the limits of the circle.
That is, the circumference of a circle is the distance around the circle, also called the perimeter of the circle.
The expression to calculate the circumference of a circle "C" can be found by multiplying the number pi by the diameter of the circle "d":
C= π×d
The circumference of a circle can also be calculated using the length of the radius, considering the radius is half the diameter (or what is the same, the diameter is twice the radius):
C= π×2×r
In this case, you know the circumference of a circle has a radius of 28 m.
Replacing in the definition of circumference of a circle:
C= π×2×28 m
Solving:
C= 175.93 m
Finally, the circumference of a circle with a radius of 28 m is 175.93 m.
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