Question

The ratio of total surface area to lateral surface area of cylindee whose radius is 80cm and height 20 cm is?

Answer 1

total surface area = lateral surface area

2*80*(80+20)=2*80*20

160*100=160*20

16000=32000

1=2  

The ratio of total surface area to lateral surface area of cylindee whose radius is 80cm and height 20 cm is 1:2