saberro26
saberro26 saberro26
  • 24-08-2017
  • Mathematics
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The area if the of a circle is 111.6 square centimeters. What is the diameter?

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YaBoiQuentin YaBoiQuentin
  • 24-08-2017
The diameter of the circle would be 11.9203
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alexy0675 alexy0675
  • 24-08-2017
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
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