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31 January, 20:39

A concrete pillar has the shape of a cylinder. It has a radius of 4 meters and a height of 9 meters. If concrete costs $87 per cubic meter, how much did the concrete cost for the pillar

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  1. 31 January, 23:14
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    28425.13

    Step-by-step explanation:

    Plug in the radius and height, and then multiply by 87.

    Formula : A=2πrh+2πr2
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