Asked by Shravani
A rectangular sheet of paper 30 into 18 cm square can be transformed into the curved surface of a right circular cylinder in two ways that is either by Rolling the paper along its length of a rolling it along its breadth
find the ratio of the volume of the two cylinders does formed
find the ratio of the volume of the two cylinders does formed
Answers
Answered by
Reiny
case 1: the circumference of the cylinder is 30, and the height is 18
2?r = 30
r = 15/?
V = ?(15/?)^2 (18) = 4050/?
case 2: the circumference is 18 and the height is 30
2?r = 18
r = 9/?
V = ?(9/?)^2 (30) = 2430/?
volume of case1 : volume of case2
= 4050/? : 2430/?
= 5 : 3
Just realized that I answered the same question back in 2013 and got the same answer,
http://www.jiskha.com/display.cgi?id=1357139089
2?r = 30
r = 15/?
V = ?(15/?)^2 (18) = 4050/?
case 2: the circumference is 18 and the height is 30
2?r = 18
r = 9/?
V = ?(9/?)^2 (30) = 2430/?
volume of case1 : volume of case2
= 4050/? : 2430/?
= 5 : 3
Just realized that I answered the same question back in 2013 and got the same answer,
http://www.jiskha.com/display.cgi?id=1357139089
There are no AI answers yet. The ability to request AI answers is coming soon!