Question

5) If the radius of a cylinder is som
and height is 10cm, then the total
surface area of a cylinder is.
a 440 sq.cm
b. 352 sq.m
C. 400 so.cm
d. 412 sq cm​

Answer 1

Let the radius of the base be

′

r

′

cm & height be

′

h

′

cm.

Now, curved surface area of cylinder =2πrh

Also, circumference of base, C=2πr=220cm

∴ Curved surface area of cylinder =220×h

⇒2200=220×h

⇒h=

220

2200

=10cm

Answer 2

Step-by-step explanation:

The answer is 440sq.cm