The circumference of the circle is 12.56 km
How to determine the circumference of the circle?
From the question, we have the following parameters that can be used in our computation:
Shape = Circle
Radius = 2 km
The circumference of a circle is the perimeter of the circle
i.e. the sum of the units of the arc that surrounds the circle
The circumference equation is represented as
Circumference = 2πr
Substitute the known values in the above equation, so, we have the following representation
Circumference = 2π * 2 km
Evaluate the products in the equation
So, we have
Circumference = 4π km
Substitute π = 3.14
So, we have
Circumference = 4 * 3.14 km
Evaluate
Circumference = 12.56 km
Hence, the circumference is 12.56
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