Question

The perimeter of the base of a cylinder is 22 cm. If its height is 10 cm, then its curved surface area is???

Answer 1

Answer:

220 cm

Step-by-step explanation:

base of cylinder is a circle ,so

2 ×22/7×r = 22

2r = 7

r = 7/2

curved surface area of cylinder is = perimeter of circle × height.

= 2πrh

=2 × 22/7 × 7/2 × 10

220 cm

got it bro,enjoy

Answer 2

the base of cylinder is a circle

therefore,

perimeter of a circle is 2πr

so,

Step-by-step explanation:

2*22/7*r=22

2r=22*22/7. =7

r=7/2

curved surface area of a cylinder=perimeter of circle*height

ie

2πrh

ie

2*22/7*7/2*10

=220 cm²(unit)