Circumfrence

Presented by: Emily Calhoon

Circumference- Circumference is the perimeter of a circle.

Radius- A straight line from the center of the circle to the outside of a circle.

Diameter- A straight line passing from side to side through the center or body of a circle.

The formula for Circumference is 3.14xD or 2x3.14xR
R=Radius
D= Diameter
Pie=3.14
To find the radius you take the diameter and divide it by 2.

First you write down the formula

C=2(3.14)xR

Then you plug in the numbers

C=2(3.14)x7

Then you solve

C=6.28x7

C=43.96

PRACTICE PROBLEM AS CLASS!

PRACTICE PROBLEM AS CLASS!

Practice problem as a class!

Answers:  1st example: 25.12cm  2nd example: 87.92m  3rd example: 37.68cm

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