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muscrat123

  • one year ago

WILL MEDAL AND FAN!!!!!!!!!!!!!!!!!!!!!!!!! A circle is cut from a square piece of cloth, as shown: How many square inches of cloth are cut from the square? (π = 3.14) 150.72 in2 192.00 in2 1,152.00 in2 1,808.64 in2

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  1. muscrat123
    • one year ago
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  2. muscrat123
    • one year ago
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    @zepdrix

  3. muscrat123
    • one year ago
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    @Compassionate

  4. Mehek14
    • one year ago
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    48 inches = diameter formula for circle: \(πr^2\) \(d/2 = r = radius\) \(48/2=24\) \( A = π*24^2\)<--solve that for me

  5. muscrat123
    • one year ago
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    1,799.22 @Mehek14

  6. Mehek14
    • one year ago
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    How did you get 1,799.22? \(24^2=24*24=576\\π*576=1808.64\)

  7. Mehek14
    • one year ago
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    How did you get 1,799.22? \(24^2=24*24=576\\π*576=1808.64\)

  8. muscrat123
    • one year ago
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    sorry. Is that the final answer? I think i understand it now. could u explain it @Mehek14

  9. Mehek14
    • one year ago
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    what do you need me to explain?

  10. muscrat123
    • one year ago
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    How u got to the final answer

  11. Mehek14
    • one year ago
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    ok

  12. Mehek14
    • one year ago
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    |dw:1435963806167:dw|

  13. Mehek14
    • one year ago
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    that's how long 1 side of the square is

  14. muscrat123
    • one year ago
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    ok

  15. Mehek14
    • one year ago
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    |dw:1435963854154:dw| the side length = diameter of the circle

  16. muscrat123
    • one year ago
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    ok

  17. Mehek14
    • one year ago
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    since you want to know how much cloth was cut from the square, you have to find the area of the circle

  18. Mehek14
    • one year ago
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    the formula for that is \(πr^2\)

  19. muscrat123
    • one year ago
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    ok

  20. Mehek14
    • one year ago
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    π = 3.14 r = radius

  21. Mehek14
    • one year ago
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    you are given the diameter, not radius radius is half of the diameter and diameter = 48 so 48/2 = 24 radius = 24

  22. Mehek14
    • one year ago
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    put that into the formula \(3.14*24^2\)

  23. Mehek14
    • one year ago
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    \(24^2=24*24=576\)

  24. Mehek14
    • one year ago
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    \(3.14*576=1808.64\)

  25. muscrat123
    • one year ago
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    ok. i understand it now

  26. Mehek14
    • one year ago
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    good \(\ddot\smile\)

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