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31 July, 04:45

The area if the of a circle is 111.6 square centimeters. What is the diameter?

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Answers (2)
  1. 31 July, 05:12
    0
    The equation for a circle's area is / pi r^2. and the equation for the diameter is 2/pi r. lets find r. we have 111.6=3.14*r^2. divide by 3.14 on both sides. that makes 36=r^2 take the square root of both sides. r=6.

    now we find the diameter. 2/pi r=2*3.14*6=3.14*12 which is approximately 38.68
  2. 31 July, 08:21
    0
    The diameter of the circle would be 11.9203
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