The curved surface area of a cylinder having radius 5 cm and height 23 cm is:

Correct option is A

Given:
Radius (r) = 5 cm
Height (h) = 23 cm
Formula Used:
Curved Surface Area (CSA) of a cylinder =  $$2\pi rh$$​​
Solution:
​$$CSA = 2 \times \pi \times 5 \times 23\\ \ \\CSA = 10 \times 23 \times \pi\\ \ \\CSA = 230\pi cm²$$​​
So the correct answer is (a)