a cylinder has a height of 19 feet. the volume is 3,818.24 cubic feet. what is the radius of the cylinder? use ​π ≈ 3.14

Question

a cylinder has a height of 19 feet. the volume is 3,818.24 cubic feet. what is the radius of the cylinder? use ​π ≈ 3.14

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Lệ Thu 5 months 2021-09-05T09:46:23+00:00 2 Answers 0 views 0

Answers ( )

  1. Maris
    0
    2021-09-05T09:47:31+00:00
    Reply

    Answer:

    The radius is 32 cubic feet

    Step-by-step explanation:

    The formula to find the volume of a cylinder is V=Bh or V=πr2h. So you would need to work backwards because you already have the volume and height.

    3,818.24= 3.14r2*19

    3,818.24= 3.14r*38

    Because of the associative property you can multiply 3.14 by 38

    which is 119.32

    So the next expression would be

    3,818.24= 119.32r

    How do you reverse multiplication? You need to devide both sides. In this case, you need to divide 3,818.24 by 119.32.

    To get 32=r

  2. quangkhai
    0
    2021-09-05T09:48:11+00:00
    Reply

    32sq ft. your equation would be 19 x 3.14r2=3,818.24

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