thahall1 thahall1

01-03-2015
Mathematics

contestada

The volume of a cylindrical watering can is 100cm^3.If the raduis is doubled,then how much water can the new can hold?

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jammyjad456 jammyjad456

01-03-2015

v(volume)=pi x r²
v/pi = r²
sqrt v/pi = r
this finds the radius, you can then calculate the new volume by doubling the radius
v=pi x (2r)² = 400cm³

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