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The tires on Pablo's bicycle have a radius of 10 inches. Use the appropriate formula model to find the circumference. What is the circumference of a tire? Round your answer to the nearest tenth and include units with your answer.

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Circumference is calculated by using
2\pi r.

We know that the radius is 10 inches, so let's plug that in.


2\pi 10 = 20\pi \approx 62.8 \text{in}
User Axel Puig
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