Two cylinders, A and B, are mathematically similar. The height of cylinder B is twice the height of cylinder A. The total surface area of cylinder A is 180cm^2. Calculate the total surface area of cylinder B.
Please explain step by step
2006-11-12 05:42:47 · 3 answers · asked by mbchelsea 1 in Science & Mathematics ➔ Mathematics
what do u mean mathematically similar?
they have the same volume?
if Volume of A = Volume of B
let Aa be area of cylinder A
and Ab area of cylinder B
ha heigth of cylinder A
and hb height of cylinder B
we know that hb=2ha
and Va=Vb so
Aa*ha = Ab*hb
Aa*ha = Ab*(2ha)
Ab=Aa/2=180/2=90cm^2
2006-11-12 05:49:47 · answer #1 · answered by Anonymous · 1⤊ 0⤋
What is the equation for the area of the cylinder? How would changing the height affect the area?
Seems like there's something missing, since there's nothing here about the diameter, which is needed to complete the problem
2006-11-12 13:53:13 · answer #2 · answered by arbiter007 6 · 0⤊ 0⤋
surface area cant be find out of other cylinder
its formula has
a=2*pi*r(2+h)
the plus sign does all the bad to find out the answer from this info
2006-11-12 13:52:36 · answer #3 · answered by Premraj Narkhede 2 · 0⤊ 0⤋