Question

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an oil drum is in the shape of cylinder cylinder with dimensions diameter 2 metre and height 7 metre find its TSA​

Answer 1

TSA of cylinder =16π or 50.28cm^2

Step-by-step explanation:

Given, h =7m ,r = 2/2m=1m

TSA of cylinder = 2πr (r+h)

= 2π1(1+7)

= 2π(8)

= 16π or 50.28cm^2

Answer 2

Answer :-

The total surface area of the oil drum is 50.28 m² (approx).

Explanation :-

Given :

• Diameter = 2 m
• Height = 7 m

To find :

• The total surface area of the cylinder.

Solution :

Radius of the cylinder = Diameter/2

=> 2/2 m = 1 m

We know that,

• Total surface area of cylinder = 2πr(r + h) sq. unit

Putting the values,

= 2 × 22/7 × 1 (1 + 7)

= 2 × 22/7 × 1 × 8

= 352/7

= 50.28 (approx)

Hence, the total surface of the oil drum is 50.28 m² respectively.