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9 July, 19:14

He volume of a cylinder is 225π cm³ and its height is 9 cm. What is the length of the cylinder radius?

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  1. 9 July, 19:31
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    Well we know that the volume of a cylinder equals (area of base) (height)

    225pi=a*9

    divide both sides by 9

    25pi=a

    a=pir^2

    25pi=pir^2

    cancel out pi

    25=r^2

    5=r so the length of the radius is 5
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