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2 March, 19:25

The raduis of a circle is 12 cm. What is the area? (Use approximation)

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Answers (2)
  1. 2 March, 20:49
    0
    The area is 452 cm2

    Step-by-step explanation:

    We use the formula:

    Area = π (raduis) 2 = π (12cm) '2 = 452, 39 cm2
  2. 2 March, 21:15
    0
    Answer: 452.16 cm²

    Step-by-step explanation: To find the area of a circle, start with the formula for the area of a circle.

    Area = πr²

    Notice that the radius of our circle is 12 cm so we can plug a 12 in for the radius in our formula.

    Area = (π) (12cm) ²

    12 cm² is equal to 12 cm * 12 cm or 144 cm².

    Area = 144π cm²

    So the area of the circle is 144π cm².

    Now, remember that π is approximately equal to 22/7 or 3.14 so we can estimate the area of the circle by plugging in 3.14 for π.

    So we have (144) (3.14) which is equal to 452.16 cm².

    So the area of the circle is approximately equal to 452.16 cm².
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