talentownsend talentownsend
  • 21-05-2018
  • Mathematics
contestada

The size of a bicycle is determined by the diameter of the wheel. You want a 22-in bicycle for your birthday. What is the area of one of the wheels?

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altavistard
altavistard altavistard
  • 24-05-2018
Area of a circle is pi*r^2.

Here the diameter is 22 inches, so the radius is 11 inches.

The area of the bike wheel is thus A = pi * (11 inches)^2 = 121*pi sq in
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