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26 March, 22:51

The area of a circle is equal to 1 dm². Find the radius of the circle.

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Answers (2)
  1. 26 March, 23:10
    0
    The radius of circle is 0.17 meters

    Step-by-step explanation:

    Since Area of circle is given as

    Area of circle = pi * r²

    So putting the values

    0.1 m² = 3.14 * r²

    0.1 / 3.14 = r²

    0.031 = r²

    Taking square root on both sides

    r = 0.17 metres
  2. 27 March, 01:22
    0
    5.64 cm

    Step-by-step explanation:

    1 decimeter = 10 centimeters

    1 dm^2 = 10^2 cm^2 = 100 cm^2

    Area of circle = 3.14*r^2 = 100

    r2 = 100/3.14*r^2 = 31.85

    r = (31.85) ^1/2 = 5.64 cm
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