Question

a right circular cylinder has a curved surface area there are 1320 cm square and the radius of its base is 10.5 cm find the height and volume of the cylinder of class 8 given CSA 1320 CM SQUARE RADIUS OF ITS BASE 10.5

Answer 1

Answer: curved surface area of closed cylinder=1320 centimetre square

Radius=10.5

CSA of closed cylindrical is equal to=1320

Step-by-step explanation:

Answer 2

The height of cylinder is 20 cm and the volume of cylinder is 6930 cubic cm

Step-by-step explanation:

Curved surface area of cylinder =$2 \pi rh$

Radius of cylinder = 10.5 cm

So, Curved surface area of cylinder= $2 \times \frac{22}{7} \times (10.5) \times h$

We are given that a right circular cylinder has a curved surface area there are 1320 cm square

So,  $2 \times \frac{22}{7} \times (10.5) \times h =1320$

$h = \frac{1320 \times 7}{2 \times 22 \times 10.5}$

h = 20 cm

Volume of cylinder = $\pi r^2 h = \frac{22}{7} \times 10.5^2 (20)=6930 cm^3$

Hence the height of cylinder is 20 cm and the volume of cylinder is 6930 cubic cm

#Learn more;

A right circular cylinder has base radius 10.5 cm and height 14 cm. find its CSA

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