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26 August, 16:17

A cylinder has a volume of 225π inches3. What is its height, if its radius is 10 inches?

A) 2.25 inches

B) 22.5 inches

C) 2.25 π inches

D) 0.716 inches

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Answers (1)
  1. 26 August, 19:41
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    The formula for the volume of a cylinder is

    ... V = π·r²·h

    where r is the radius and h is the height.

    Filling in the given numbers, we have

    ... 225π in³ = π· (10 in) ²·h

    Dividing by the coefficient of h, we get

    ... (225π in³) / (100π in²) = h

    Cancelling common factors, gives

    ... 2.25 in = h

    The appropriate choice is

    ... A) 2.25 inches
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