Help in Circumference of a circle A small pizza has a diameter of 21 cm.
What is the approximate circumference of the pizza? Use = 3.14.


Sagot :


The circumference of any circle is (pi) x (the diameter of the circle).

The problem gives you both numbers, so all you have to do is multiply them.

Circumference = (pi) x (diameter) = (3.14) x (21cm) = 65.94 cm .