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Circumference of a circle with radius - Circle - Mensuration problem solver

What is the circumference of a circle with radius 3 ?

circumference of a circle with radius

radius = 3
C =  2 * PI * r
circumference = 2 * PI * 3
circumference = 18.8571
So the circumference is 18.8571

Circle :

Circle is a perfect round shape.

Circle Formulas :

A =  PI * r * r

C =  2 * PI * r

d =  r * 2

r =  C / ( 2 * PI )


where,

d = diameter
A = area
C = circumference
r = radius

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