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9 February, 12:50

The radius of a smaller circle is half the length of the radius of a larger circle. The area of the larger circle is 20 square inches. What is the

approximate area of the smaller circle?

A 5 square inches

B. 10 square inches

C 12 square inches

D. 15 square inches

+3
Answers (2)
  1. 9 February, 13:39
    0
    A. 5 square inches

    Step-by-step explanation:

    The formula for the radius of a circle is r = square root of A over π

    If you plug in 20 for A you would get 2.52 for r

    2.52 divided in 2 is 1.26

    To find to area of a circle of a circle with a radius of 1.26 use the formula

    A = π (1.26) ^2

    solve and get

    4.99 or 5
  2. 9 February, 16:09
    0
    the answer to this question is a
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Home » Mathematics » The radius of a smaller circle is half the length of the radius of a larger circle. The area of the larger circle is 20 square inches. What is the approximate area of the smaller circle? A 5 square inches B. 10 square inches C 12 square inches D.
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