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25 September, 12:04

Find the exact area of a circle having the given circumference.

8

A =

4√2

16

64

+3
Answers (2)
  1. 25 September, 12:15
    0
    Hello!

    I believe that you mean 8π as the exact measure of the circumference. With that, we can find the exact area.

    The formula for the area of a circle is: A = πr².

    Thus, we need to find the diameter of the circle and divide it by 2 to find the radius.

    To find the diameter of a circle given the circumference, use the formula: d = C / π.

    d = 8π / π

    d = 8

    The radius is half of the diameter, so therefore, the radius is 4.

    With that, we can find the exact area.

    A = πr²

    A = 4² · π

    A = 16π

    Therefore, the exact area of the circle is choice B, 16π.
  2. 25 September, 12:32
    0
    The answer to this question is choice b 16
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