A circular rug has a radius of 4 point 5 feet. What is the circumference of the rug? Use 3 point 1 4 for pi and round to the hundredths place.

Use the circumference formula C = 2πr. With radius 4.5 feet and π = 3.14, C = 2 × 3.14 × 4.5 = 28.26 feet. So the circumference is 28.26 ft, choice C.

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