Question

Ratio of the total surface area to the lateral surface area of a cylinder whose radius is 20 cm and height is 60 CM?

Answer 1

Answer:

REFERS TO ATTACHMENT ATTACHMENT!!!!!!!!

Answer 2

AnswEr :

• T.S.A. of Cylinder = 2πr(h + r)
• L.S.A. of Cylinder = 2πrh

† Radius = 20 cm and, Height = 60 cm

A.T.Q.

$\boxed{ \huge \bold{ \frac{TSA}{LSA} = \frac{2\pi r(h + r)}{2\pi rh} }}$

➟ $\huge \bold{ \frac{TSA}{LSA} = \frac{(h + r)}{h} }$

➟ $\huge \bold{ \frac{TSA}{LSA} = \frac{(60 + 20)}{60} }$

➟ $\huge \bold{ \frac{TSA}{LSA} = \frac{80}{60} }$

➟ $\red{\huge \bold{ TSA : LSA = 4 :3 }}$