Find the total surface area of a cylindrical container with lid, whose base diameter is k cm and height is k/2 cm (in cm2 ).
Show answer & explanation
Correct answer: B
Explanation
The Correct answer is option 2 i.e. πk2
Given that
The base diameter of a cylinder is k cm, and height(h) cm.
Radius (r) = diameter/2 = k/2
Formula used
The total surface area of cylinder = 2πr(r + h)
Calculation
TSA = 2 × π × (k/2) × (k/2 + k/2)
TSA = πk2 cm2