A circle has a diameter of 10 mm . What is its circumference?

Use 3.14 for π , and do not round your answer. Be sure to include the correct unit in your answer.


Sagot :

I got the answer 31.42mm NOT ROUNDED. And The Diameter is 10mm
Circumference of a circle of radius r : C=2*pi*r. The diameter is d=2*r hence C=pi*d=pi*10. We thus get C=31.4 mm