Question

Find the total surface area of a cylinder if the radius of its base is 5 cm and height is 40 cm. [π = 3.14]

Answer 1

Given: For the cylinder, 

radius (r) = 5 cm, 

height (h) = 40 cm 

To find: Total surface area of the cylinder. 

Total surface area of cylinder = 2πr (r + h) 

= 2 × 3.14 × 5 (5 + 40) 

= 2 × 3.14 × 5 × 45 

= 1413 cm² 

The total surface area of the cylinder is 1413 cm² .