# Circumference and Area

of a Circle

### To begin finding the circumference of a circle you need to know the proper vocab used.

### CIRCUMFERENCE-- the distance around a circle

DIAMETER-- a line segment that passes through the center of the circle from side to side

RADIUS-- a line segment that connects the center of the circle to the circle

PI-- the ratio of a circle's circumference C to its diameter d.

## To begin write the formula then replace p with 3.14 (do not use the pi button on your caculator!!!) then multiply the whole equation together

## or in the event that you have the diameter only divide it by two then find the circumference.

# FINDING THE AREA OF A CIRCLE

## To find the area A of a circle use the formula

A=prĀ²

## To begin write the formula then replace pi, then square the radius finally multiply the squared radius by 3.14

## Find the area of this circle