Question

Find curved surface area of each of
following
cylinders
(1) r= x cm., h = y cm.
( i) d= 7 cm., h=10 cm.
(ii) r= 3 cm., h= 14 cm.​

Answer 1

Answer:

1 .

r = x cm and h= y cm

CSA OF CYLINDER = 2πrh

Step-by-step explanation:

csa = 2 * 22/7*x*y

= 2πxycm^2

2.

d= 7 cm .. r= d/2.. 7/2cm

h= 10 cm

csa of cylinder = 2πrh

= 2*22/7*7/2*10

= 220 cm^2

3. r =3 cm

h= 14 cm

csa of cylinder = 2πrh

= 2 *22/7*3*14

= 264cm^2