Question

If the diameter of the base of a closed right circular cylinder be equal to its height 'h', then its whole surface area is

Answer 1

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Answer 2

Answer:

Total Surface Area of the Cylinder is 3/2 × π × h² unit²

Step-by-step explanation:

Given: Diameter of the Right circular cylinder , d = h

           Height of the cylinder , h

To find: Total Surface Area of the cylinder.

We know that Total surface area of the cylinder = 2πr ( r + h )

r = d/2 = h/2

So,

Total Surface Area of the cylinder = 2 × π × (h/2) × ( h/2 + h )

                                                         = π × h ( 3h/2 )

                                                         = 3/2 × π × h²

Therefore, Total Surface Area of the Cylinder is 3/2 × π × h² unit²