What is the curved surface area of a cylinder having radius of base as 63 cm and height as 20 cm?

Correct option is A

Given:
Radius of the base (r) = 63 cm
Height (h) = 20 cm
Formula Used:
Curved Surface Area (CSA) = 2$$\pi$$​rh
Solution:
CSA =$$2 \times \pi \times 63 \times 20$$​​
CSA = $$2 \times \frac{22}{7} \times 63 \times 20$$​​
CSA = 7920$$\text{cm}^2$$​​