anonymous
  • anonymous
PLEASE hep?? :)
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
Agent47
  • Agent47
well, so suppose those 2 quarters of a circle are from the whole circle of radius 10. Then The area of that circle would be pi*r^2= pi*10^2=100pi. Half of that would be 50pi, so the area of the white regions is 50pi.
Agent47
  • Agent47
I got that from the fact that two quarters of a circle make a semicircle. So now, subtract 50pi from the area of the rectangle which is: (10+10)*10=20*10=200

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Agent47
  • Agent47
200-50pi = 200-50*3.14 which is about 43
Agent47
  • Agent47
square feet
anonymous
  • anonymous
FINAL ANSWER? THANK YOU SO MUCH :)
anonymous
  • anonymous
Whoops, sorry abiut the caps!
Agent47
  • Agent47
43
anonymous
  • anonymous
At=A(rectangle) - A[1/2 circle] = LxW - 1/2(pi r^2) =10x20 - 1/2(PIx10^2) = 200-157 =43 sq ft
anonymous
  • anonymous
did that help maybe
anonymous
  • anonymous
yes

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