Needing SERIOUS help with circumference and area circle-wise. Help? I'm not really sure where I'm messing up at, but could someone explain all the forumula stuff with area to me in layman's terms?

Answer 1

Circumference is the distance around the circle. The circumference equals pi times the diameter.

Example for a circle with a 4 cm diameter:

C = pi * d
C = 3.14 * 4
C = 12.56 cm

The area of a circle equals pi * radius squared.

Example for a circle with a radius of 3 cm:

A = pi * r^2
A = 3.14 * 9
A = 28.26 square centimeters

http://www.1728.com/diamform.htm