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3 May, 20:36

The area of a circle is 78.5 square yards. find the radius to the nearest whole using 3.14 for PI (A = nr2)

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  1. 3 May, 20:54
    0
    Area = 78.5 yd²

    πr² = 78.5

    3.14r² = 78.5

    r² = 25

    r = 5

    answer: 5 yds
  2. 3 May, 21:02
    0
    Step-by-step explanation:

    The formula for the area of a circle is expressed as

    Area = πr^2

    Where r represents the radius of the circle

    π is a constant whose value is 3.14

    The area of the given circle is 78.5 square yards. To determine the radius of the circle,

    πrr^2 = 78.5

    3.14πr^2 = 78.5

    Dividing the left hand side ofbthe equation and the right hand side of the equation by 3.14. It becomes

    r^2 = 78.5/3.14 = 25

    Taking square root of both sides of the equation,

    r = √25 = 5 yards
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