Finding π (optional)
You need:
• Six or fewer objects that have a round surface
• Yard or meter stick
• Ruler
• String (must be long enough to go around each of the round surfaces)
Directions:
1. List each object in the chart below.
2. Take your string and measure the distance around the circular object. Write that measurement
in the chart under Circumference.
3. Use your ruler to measure the diameter of the circular object. Write that measurement in the
chart under Diameter.
4. Divide the circumference by the diameter. Write that answer in the chart under Ratio. Was your
answer close to π