Question

The diameter of a cylinder is 7 cm and its height is 16 cm. Find

Lateral surface area
Total surface area
volume

Answer 1

Here's your answer mate.

Answer 2

Hola

Answer -

Given - Diameter of cylinder - 7 cm
Height = 16 cm

To find - 1. Lateral Surface area

2. Total Surface Area

3. Volume

Calculation -

____________________
1. LSA or CSA of cylinder - 2πrh

r = d/2 => 7/2

Therefore,

2 × 22/7 × 7/2 × 16

= 2 × 22 × 1/2 × 16

= 44 × 8

=> 352cm²

LSA => 352cm²
____________________

2. TSA of cylinder = 2πr ( h + r )

= 2 × 22/7 × 7/2 ( 16 + 7/2)

= 2 × 22 × 1/2 ( 16 + 3.5 )

= 22 ( 19.5 )

= 429cm²

Therefore,

TSA = 429cm²
____________________

3. Volume of cylinder = πr²h

= 22/7 × 7/2 × 7/2 × 16

= 22 × 1/2 × 7/2 × 16

= 11 × 7 × 8

= 77 × 8

= 616cm³

Therefore,

Volume = 616cm²

Hope it helps !