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When rolled along it's length,
2πr = 30 cm
r = 15π cm
& length = 18 cm
volume = πr^2 × length
= π × (15π)^2 × 18
= 225/π. ×18
= 4050/π. cm^3
when rolled along it's breath,
2πr = 18 cm
r = 18/2π = 9π cm
& length = 30 cm
volume = π(9π)^2 × 30
= (81×30)/π
= 2430/π. cm^3
hence, the ratio volume of both the cylinders
= (4050/π) / (2430/π)
=5/3
I hope this will help you....
2πr = 30 cm
r = 15π cm
& length = 18 cm
volume = πr^2 × length
= π × (15π)^2 × 18
= 225/π. ×18
= 4050/π. cm^3
when rolled along it's breath,
2πr = 18 cm
r = 18/2π = 9π cm
& length = 30 cm
volume = π(9π)^2 × 30
= (81×30)/π
= 2430/π. cm^3
hence, the ratio volume of both the cylinders
= (4050/π) / (2430/π)
=5/3
I hope this will help you....
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