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24 July, 23:02

The volume of a cylinder is 176cm

and its height is 11 cm.

What is the length of the cylinder's radius?

Enter your answer in the box. N

cm

+4
Answers (2)
  1. 25 July, 00:17
    0
    Radius: 2.256758334

    Step-by-step explanation:

    Reverse engineer the problem, by using the formula for finding the volume of a cylinder.

    Volume of a cylinder = pi x r^2 x height

    Formula to solve problem: pi x r^2 x 11 cm = 176 cm cubed.

    176 divided by (pi x 11) = r^2 (5.092958179)

    sqrt of 5.092958179 is 2.256758334
  2. 25 July, 00:17
    0
    2.3 cm to 1 decimal Place

    Step-by-step explanation:

    To work out radius do volume / (length * pi) then square root.

    176 / 11pi which equals 5.1 you get 11 pi from doing length X pi

    Square root the 5.1 to get 2.3. You square root because 5.1 is radius^2
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