Clare wonders if the height of the toilet paper tube or the distance around the tube is greater.
What information would she need in order to solve the problem? How could she find this out?
Measure the Circumference of a Circle.
When the tire of a bike turns one complete revolution, the bike travels a distance equal to the circumference of the tire. Here below is a visualization to help you understand how that happens.
What do you notice?
Find the Missing Distance.
Here below are five circles. One measurement for each circle is given in the table.
Explore a Circle to Find the Value of Pie.
What is its diameter?
(1.) Calculate the value of: circumference ÷ diameter.
(2.) What do you notice?
Diego measured the diameter and circumference of several circular objects and recorded his measurements in the table.
One of his measurements is inaccurate. Which measurement is it? Explain how you know.
The circumference of Earth is approximately 40,000 km. If you made a circle of wire around the globe, that is only 10 meters (0.01 km) longer than the circumference of the globe, could a flea, a mouse, or even a person creep under it?
Complete the table. Use one of the approximate values for pi discussed in class (for example 3.14, 22/7, 3.1416).
Explain or show your reasoning for how you determined the missing values in the table.