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
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
1 answer
3 answers