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08-02-2019
Mathematics

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A bicycle wheel has a diameter of 21 inches.What is the circumference of this wheel?What is the radius

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altavistard altavistard

12-02-2019

Answer:

C = 65.97 in; r = 10.5 in

Step-by-step explanation:

The circumference is C = πd. Since the diameter is 21 in, the circumference is C = (3.14)(21 in) = 65.97 inches.

The radius is half the diameter:

r = (21 in) / 2 = 10.5 in

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