Question

a cylindrical vessel open at the top, has a radius 10 cm and height 14 cm.find the total surface area of the vessel.

Answer 1

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

But here the top is open, so total surface area

= 2πrh + πr²


2πrh = 2 × 22/7 × 14 × 10

=> 44 × 20

=> 880cm²


πr² = 22/7 × (14)²

=> 22/7 × 196

=> 22 × 28

=> 616cm²


So total surface area = 880 + 616 = 1496cm²



Hope it helps dear friend ☺️

Answer 2

hey there

We know that

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

But here it is a open cylinder  = 2πrh + πr²

2πrh

2 × 22 / 7 × 14 × 10

44 × 20

880cm² * 22/7 × (14)²

22/7 × 196

22 × 28

> 616cm²

So total surface area = 880 + 616 = 1496cm²

hope it helps you

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