Ana's younger brother and sister went on a carnival ride that has two separate circular tracks. Ana's brother rode in a blue car that travels a total distance of 220 feet around the track. Ana’s sister rode in a green car that travels a total distance of 126 feet around the track. Ana drew a sketch of the ride. What is the difference between the radii of the two circular tracks? Answer the questions to find out.

1. Are the distances of 220 feet and 126 feet the radii, diameters, or circumferences of the two circles? Explain.

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2. What is the radius of the circle made by Ana's brother in the blue car? Use 3.14 for π and round your answer to the nearest tenth. Show your work.

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3. What is the radius of the circle made by Ana's sister in the green car? Use 3.14 for π and round your answer to the nearest tenth. Show your work.

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4. What is the difference in the radii of the circles?

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