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15 October, 07:19

A cone-shaped building has a height of 11.4 meters and a base with a diameter of 12 meters. The building will be filled with road salt that costs $20 per cubic meter.

How much will it cost to fill the building with road salt?

Use 3.14 for π.

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Answers (2)
  1. 15 October, 07:37
    0
    I think the answer is $8591.04
  2. 15 October, 07:38
    0
    Area of the base = πr^2

    volume = area of the base x the height

    take the volume x the price per cubic meter

    3.14 x 12^2=452.16 x 11.4 = 5,154.62 x $20 = $103,092
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