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31 October, 14:57

A circle has a circumference of x feet and an area of y square feet. If x=2y, what is the radius of the circle

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Answers (2)
  1. 31 October, 17:55
    0
    x=2y is linear and can also be writtend as y=x/2
  2. 31 October, 18:34
    0
    Formula: circumference = 2πr

    Formula: Area = πr²

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    Given circumference = x and area = y and x = 2y

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    2πr = 2πr²

    Divide by 2πr on both sides:

    r = 1

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    Answer: r = 1
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