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i don't get this circle a has a diameternof 10 feet. rounded to the tenths place, the are of circle a is what?

  • math -

    Here's the formula for the area of a circle:

    A = pi * radius squared

    A = 3.14 * 5^2
    A = 3.14 * 25
    A = 78.5 square feet

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