Question

Hey Friend,

Height (h) = 5 cm
Let the radius be 'r' cm.

Curved Surface Area (CSA) = 440 cm^2
2 x x r = 440
r = 440 / 2 x 7 / 22
r = 70 cm

Therefore, the radius of base is 70 cm.

Answer 1

Answer:

The radius of the cylinder, r=5cm

Let the height of the cylinder be h cm.

Curved surface area of the cylinder=440cm

2

[∴2πh=440]

[⇒h=

2πr

440

]

[⇒h=

2π×5

440

=

π

44

cm]

Thus, the height of the cylinder is [

π

44

]cm

Answer 2

Answer:

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Given, h=5cm

⇒Let radius =r

(i) Curved Surface Area

⇒94.2cm

2

=2πrh

⇒94.2 cm

2

=2×3.14×r×5cm

⇒r=3cm

(ii) Volume of cylinder

⇒πr

2

h=3.14×3×3×5

=141.2cm

3