1. A rectangular tin sheet is 12 cm long and 5 cm broad. It is rolled along its length to form a cylinder by making the opposite edges Just to touch each other. Then the volume of the cylinder is
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By: anil on 05 May 2019 01.53 am
From the above figure circumference of cylinder= 12cm
So 2πR= 12 R= $$frac{12}{2pi}$$ Volume of cylinder= π$$(R)^{2}$$h
where h and R are height and radius
So volume, V= π$$(frac{12}{2pi})^{2} imes5$$ V=$$frac{180}{pi}$$ $$cm^{3}$$
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From the above figure circumference of cylinder= 12cm
So 2πR= 12 R= $$frac{12}{2pi}$$ Volume of cylinder= π$$(R)^{2}$$h
where h and R are height and radius
So volume, V= π$$(frac{12}{2pi})^{2} imes5$$ V=$$frac{180}{pi}$$ $$cm^{3}$$