Question

20x - 4 , 50x square - 2​

Answer 1

Answer:

The radius of a cylinder is 12 m and height is 21 m. Find the curved surface area of the cylinder.

Answer :-

Given :-

r = 12 cm

h = 21 cm

To Find :-

Curved surface area ( CSA )

Solution :-

Curved surface area of cylinder = 2πrh

Substituting the values in formula :-

→ \sf CSA = 2 \times \frac{22}{\cancel7} \times \cancel21CSA=2×

7

22

×

2

1

→ \sf CSA = 2 \times 22 \times 3 \times 12CSA=2×22×3×12

→ \sf CSA = 1584 CSA=1584

Curved surface area = 1584 m²