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10 November, 12:26

The circumference of a circle is 44 inches. What is the area? (Use 22 for pie.)

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  1. 10 November, 12:54
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    To solve for the circumference of a circle, you need to know the equation: 2πr (Normally, pi is 3.14 but since we're supposed to use 22, so be it).

    The equation for the area, on the other hand, is πr^2. In order to solve for the area, we need to solve for the radius first.

    Since we know the circumference is 44 inches, we can form an equation:

    2πr = 44

    Since π is 22:

    2 (22) r = 44

    Simplify:

    44r = 44

    Divide both sides by 44:

    r = 1

    Now that we know the radius, we can input it into the equation for the area.

    πr^2 = π*1^2 = π*1

    Since π is 22:

    22*1 = 22

    The area of the circle is 22 in^2.

    -T. B.
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