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28 November, 21:04

Liang is ordering new tires for his car. The tires he has have a circumference of 28π inches and a wheel rim with a circumference of 18π inches. How much larger is the radius of the tire than the radius of the wheel?

10 inches

5 inches

20 inches

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Answers (1)
  1. 28 November, 23:55
    0
    5 inches

    Step-by-step explanation:

    circumference = pi * diameter

    radius = half diameter

    therefore radius = circumference / pi / 2

    radius of tire = 28/2 = 14

    radius of rim = 18/2 = 9

    difference = 14-9 = 5 inches
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