The radius of a circle is 4 meters. What is the circle's circumference? r=4m
Use 3.14 for pie

This value is approximate because pi = 3.14 is approximate

Work Shown:

r = 4 = radius

pi = 3.14 approximately

C = circumference

C = 2*pi*r

C = 2*3.14*4

C = 25.12

The circumference is approximately 25.12 meters.

Side note: The circumference is the same as the perimeter of a circle.

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!