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computergeek123

  • 2 years ago

PLEASE hep?? :)

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  1. computergeek123
    • 2 years ago
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  2. Agent47
    • 2 years ago
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    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.

  3. Agent47
    • 2 years ago
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    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

  4. Agent47
    • 2 years ago
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    200-50pi = 200-50*3.14 which is about 43

  5. Agent47
    • 2 years ago
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    square feet

  6. computergeek123
    • 2 years ago
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    FINAL ANSWER? THANK YOU SO MUCH :)

  7. computergeek123
    • 2 years ago
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    Whoops, sorry abiut the caps!

  8. Agent47
    • 2 years ago
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    43

  9. mark_o.
    • 2 years ago
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    At=A(rectangle) - A[1/2 circle] = LxW - 1/2(pi r^2) =10x20 - 1/2(PIx10^2) = 200-157 =43 sq ft

  10. mark_o.
    • 2 years ago
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    did that help maybe

  11. computergeek123
    • 2 years ago
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    yes

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