Find the ratio between the total surface area of a cylinder to its curved surface area, given that its height and radius are 7.5 cm and 3.5 cm.
Given,
Height of cylinder = 7.5 cm
Radius of cylinder = 3.5 cm
So, curved surface area of cylinder = 2πrh =
cm2
Total surface area = 2πr(h+r) = 
cm2
So, 
7