Answers

2015-12-26T18:07:36+05:30
1617cm cube= Volume of cylinder
22÷7×2x×2x×3x= 1617
12x×22÷7= 1617
1617×7÷22=12x
1617÷22=73.5
73.5 ×7= 12x
514.5 =12x
x= 514.5 ÷12
x=42.875
radius=2×42.875 =85.75cm
height=3×42.875=128.625cm
Hence Done
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but 2x *2x *3x will be 12x cube so where will cube go
yes with that change the whole of the sol will change
Sorry I forgot it
Thanks
2015-12-26T20:41:55+05:30
The ratio of radius and height of the cylinder = 2:3
Let the radius be 2x cm and the height be 3x cm
Volume of cylinder = πr²h
⇒πr²h = 1617(given)
⇒(22/7)(2x)² (3x) = 1617
⇒(22/7)(4x²) (3x) = 1617
⇒12x³ = (1617)(7/22)
⇒12x³ = 11319/22
⇒12x³ = 514.5
⇒ x³ = 514.5/12
⇒ x³ = 42.875
⇒ x = ∛42.875
∴ x = 3.5
Therefore the height of the cylinder = 3x = 3(3.5) = 10.5cm
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