Math

how do u find the area and circumference of a circle if the radius is 2.5 ?

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  1. Area = Pi * r^2
    A = 3.14 * 2.5^2
    A = ?

    Circumference = 2 * Pi * r
    C = 2 * 3.14 * 2.5
    C = ?

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    Ms. Sue
  2. Ms. Sue gave you the formulas.

    Did you apply the formulas?

    A = 3.14 (r)^2

    A = 3.14 (2.5)^2

    A = 3.14 (6.25)

    A = 19.625

    ==================

    C = 2 (3.14)(2.5)

    C = 15.7

    Done!

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