Question

Curved surface area of a cylinder is 440 cm square find its volume is the height of its is 21 CM

Answer 1

Its volume is 718.74 cubic cm

Step-by-step explanation:

Curved surface area of cylinder = $2 \pi r h$

Height of cylinder = h = 21 cm

Curved surface area of cylinder =$2 \times \frac{22}{7} \times r \times 21$

Curved surface area of a cylinder is 440 cm square

So, $2 \times \frac{22}{7} \times r \times 21 =440$

$r=\frac{440 \times 7}{2 \times 22 \times 21}$

r=3.3 cm

Volume of cylinder =$\pi r^2 h = \frac{22}{7} \times 3.3^2 \times 21=718.74 cm^3$

Hence its volume is 718.74 cubic cm

#Learn more:

The CS Aof cylinder is 440 Cm and its base is 110 cm find the volume of cylinder​

https://brainly.in/question/14403948

Answer 2

Answer:-

The Volume Of The Cylinder is 733.33cm³

Step By Step Explain:-

Curved Surface Area of a cylinder = 440cm²

= Height of the cylinder = 21cm

= Curved Surface Area = 440

= 2πrh = 440

= 2×22/7×r×21 = 440

= r = 440/132

= r = 110/33cm.

Since,

Volume of the cylinder = πr²h

So,

Volume of the given cylinder = [22/7×110/33×110/33×21] = 24200/33cm³

= 733.33cm³

Hence, The Volume of the cylinder is 733.33cm³