You would multiply the diameter by the value of pi which is 3.14159.
How To Find The Circumference In A Circle With A Diameter Of 20 Meters?
You would take pi x 2 x diameter, since diameter is used to measure meters. The problem written out would be like this. 3.14 x 2 x 20 = 125.60.
The formula for circumference of a circle is 2 x pi x r
where pi = 22/7 = 3.14 and r = radius of the circle.
In this case if d=20, then r = d/2 = 10
thus, circumference of the circle = 2 x pi x r = 2 x 3.14 x 10 = 62.8m
where pi = 22/7 = 3.14 and r = radius of the circle.
In this case if d=20, then r = d/2 = 10
thus, circumference of the circle = 2 x pi x r = 2 x 3.14 x 10 = 62.8m