1. The Circumference/Diameter Ratio
Section 6-5
The Circumference/Diameter Ratio

2. The distance around a polygon is called the perimeter
The distance around a circle is called the circumference
Perimeter
Circumference

3. Which is greater? Height of a tennis ball can?
Circumference of the canister?

4. Let’s try it !!!
The circumference of the canister is greater than the height of the canister or three tennis balls.

5. The taste of pi
In this investigation you will find an approximate value for π by measuring circular objects and calculating the ratio of the circumference to the diameter. Lets see how close you come to the actual value of π.