Question

a cylindrical vessel, open at the top, has radius 10cm and its height 14cm. find the TSA of the vessel.(π=3.14)​

Answer 1

Answer:

TSA= 1193.2 cm^2

Step-by-step explanation:

TSA of a cylinder= 2πr(r + h)

=2 × 3.14 × 10 (10 + 14)

=2 × 31.4 (24)

=1507.2 cm^2

But, it is open at the top.

=> TSA = 2πr(r + h) - πr^2

= 1507.2 - [3.14 × (10)^2]

=1507.2 - (3.14 × 100)

=1507.2 - 314

=1193.2 cm^2

Answer 2

Area of the cylinder includes lower curved surface, upper curved surface, lateral surface including height.

Step 2:

Given that the cylinder is open at the top. This means that the surface area of the lid should not be considered.

Step 3:

Area of the cylindrical surface.

Area = 2 π r h + π r²

A = 2 x 3.14 x 10 x 14 + 3.14 x 10square

A = 1193.2 cm²