Question

the radius of cylinder is 7 cm and height is 10 cm . Find its curved surface area and its volume

Answer 1

Answer:

440

Step-by-step explanation:

c.s.a of cylinder 2πrh

2×22/7×7×10

44×10

440 ans

Answer 2

The Curved surface area and volume of cylinder is "440 cm²" and "1540 cm³". Further explanation is given below.

Step-by-step explanation:

Given :

The radius, r= 7 cm

The height, h = 10 cm

As we know,

Curved surface area of a cylinder, CSA = 2πrh

On putting the values in the above formula, we get

⇒  CSA = 2×$\frac{22}{7}$×7×10

⇒           = 2×22×10

⇒           = 440 cm²

Volume of a cylinder, V = πr²h

⇒  V = $\frac{22}{7}$×(7)²×10

⇒     = $\frac{22}{7}$×(7×7)×10

⇒     = 22×7×10

⇒     = 1540 cm³

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