Question

the ratio of the total surface area to the lateral surface area of a cylinder with base radius 80 cm and height 20 cm is:
(i )2:1
(ii)3:1
(iii)4:1
(iv)5:1​

Answer 1

Answer:

(iv) 5:1

Step-by-step explanation:

TSA of cylinder = 2πr(h+r)

                           = 2π80*100

CSA of cylinder = 2πrh

                      = 2π80*20

TSA/CSA = 16000π/1600π*2

TSA:CSA = 10:2

TSA:CSA = 5:1

Hope it helps!

Answer 2

5:1

Hopefully it helps u