The scooter tire has a diameter of 32 cm. what is the circumference of the tire?

**Answer:**

100.53096491487338363080458826494 cm²

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### Solve

Set up a system of equations for circumference and diameter. Circumference will be the value of pi times diameter, and diameter will be radius, which we do not find for this case.

*ignore the 2, it causes confusion.*

Now that you have your system partially set up, put these values of Circumference(*C *) and diameter(*d* ) into a full equation.

*Remember when finding circumference by diameter, multiply pi by the value of the diameter for your answer.*

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### What have we learned?

We learned how to find circumference by using diameter and pi in a system of equations.

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### Questions?

Ask in the comments.