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A metal sphere of radius 15cm is melted down and recast into a solid cylinder of radius 6cm. Calculate the height of the cylinder.

Using the eqauation for volume of sphere (V=4/3 pi r^3) calculate the volume of the original sphere. This comes to 14137.2 cm^3 (1dp). The new cylinder formed has the same volume. Therefore, you can use t...

SK
Answered by Sameerah K. Maths tutor
13429 Views

Which is the difference between "imperfetto" and "passato prossimo" in Italian? When do you use the firts and when do you use the second?

The difference between the Italian imperfetto and passato prossimo can be tricky but it is important to understand it well and to demonstrate its correct use at GCSE level. We use passato prossimo...

CT
Answered by Claudia T. Italian tutor
2973 Views

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