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Miguel cuts a square with a 5inch sides out of a circle with a 12inch diameter. Find the area of the remaining piece to the nearest tenth.

I don't undersand how to figure ou the problem.

  • math -

    Find the area of the circle. Then find the area of the square. Subtract the square's area from the circle's area.

  • math -

    so the answer is 12.7?

  • math -

    sorry my sister typed in her name so it says her name not mine
    that's my answer...12.7

  • math -

    I got a different answer.

    Did you use this formula for the area of the circle? A = pi * r^2

    Did you multiply 5 * 5 for the area of the square?

  • math -

    yes ma'm

  • math -

    Circle:
    3.14 * 36 = 113.04 square inches
    5 * 5 = 25 square inches

    113.04 - 25 = 88.04 = 88.0 square inches

  • math -

    so the circle equals 3.14rsquare (r=3.5 square) and that equals 11

    then for the square 5square and that equals 20

    then 20-11=9
    the answer is 9?

  • math -

    The radius is 6 inches.
    Square that and multiply by 3.14 to find the area of the circle. See above.

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