MaddieSAAABBRR MaddieSAAABBRR
  • 10-06-2018
  • Mathematics
contestada

find the area of a circle having a circumference of 12

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mflore31 mflore31
  • 10-06-2018
a=3.14r^2 so 3.14x 6 which is your radius to the power of 2 A=113.1
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gameboy99915
gameboy99915 gameboy99915
  • 10-06-2018
The formula for the area of the circle --- A = pi x r^2
we dont have R but we do have a circumference so we can get r by using the formula --- C =2 x pi x r

12/2 x pi = r
r = 1.9

going back to the area formula --- A = pi x (1.9)^2 = 11.46


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