What with the circumference be of a circle that has 7 cm radius?

The circumference of a circle can be calculated using the formula ( C = 2\pi r ), where ( r ) is the radius. For a circle with a radius of 7 cm, the circumference would be ( C = 2\pi(7) ), which equals approximately ( 43.98 ) cm when using ( \pi \approx 3.14 ).