If a cylinder of radius 7cm and height 15cm is recasted into new cylinder of r- 4cm what will be its height
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TSA of new cylinder will be 968 cm 2.
Take the formula of tsa and put r=4 cm and find the height. It will be 34.5 cm
Take the formula of tsa and put r=4 cm and find the height. It will be 34.5 cm
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kchandankhushi:
we have to consider the formula of volume..and r - 4..not r = 4
Then put the radius=3cm
ya..and consider d volume
what's your height ?
81.6
is it correct?
idk yet
OK
Answered by
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TSA of new cylinder will be 968 cm 2.
Take the formula of tsa and put r=4 cm and find the height. It will be 34.5 cm
but u have to consider volume
but why
since the cylinder is recasted..then obviously it is first melted and recasted into a new cylinder..so the volume of cylinder will be equal to the volume of the new cylinder
m i ryt ???
i dont think so !
but TSA will also be the same
no dear..ideally u need to take d volume..
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