Question

The radii of two cylinders are in
the ratio 2:3 and their heights
are in the ration 5:3. Find the ratio
of their total surface areas.

Please give a step wise Solution, Easy to understand, and correct one.

PLEASE ANSWER FAST
NO SPAM
OR ELSE ANSWER WILL BE REPORTED

Answer 1

Answer:

plss follow me

7:9

Step-by-step explanation:

We have given that the ratio of two cylinders radius is

2:3

so, 2/3

now , ratio of thier height is 5:3

therefore , 5/3

let the radius of the first cylinder be r= 2

and height of it be h= 5.

now

for the second cylinder , the radius be R=3

and height be H = 3

T.S.A. of first Cylinder = 2πr(r+h)

= 2π2(2+5)

= 4π7

=28π

T.S.A .of Second cylinder = 2πR(R+H)

=2π3(3+3)

=6π×6

=36π

NOW RATIO OF THIER AREAS :

28π/36π

=7/9

OR, 7:9.

HOPE THIS WILL HELP YOU.