Question

1.Find C.S.A, T.S.A, Volume of a cylinder
with radius 3.5cm and height 14cm

Answer 1

Answer:

CSA of the cylinder is 308 cm².

TSA of the cylinder is 385 cm².

Volume of the cylinder is 539 cm².

Step-by-step explanation:

Given :-

• Radius of the cylinder = 3.5 cm
• Height of the cylinder = 14 cm

To find :-

• CSA , TSA and volume of the cylinder.

Solution :-

Formula used :

★${\boxed{\sf{CSA\:of\: cylinder=2\pi\:rh}}}$

★ ${\boxed{\sf{TSA\:of\: cylinder=2\pi\:r(h+r)}}}$

★ ${\boxed{\sf{Volume\:of\: cylinder=\pi\:r^2h}}}$

CSA of cylinder,

= 2πrh

= [2×(22/7)×3.5 × 14 ] cm²

= (22×14) cm²

= 308 cm²

Therefore the CSA of cylinder is 308 cm².

________________

TSA of cylinder ,

= 2πr(h+r)

= [2 × (22/7) ×3.5 (14+3.5) ] cm²

= [2 × (22/7) × 3.5 × 17.5 ] cm²

= (22×17.5) cm²

= 385 cm²

Therefore the TSA of cylinder is 385 cm².

_________________

Volume of cylinder,

= πr²h

= [(22/7) × 3.5 × 3.5 × 14 ] cm³

= (22×3.5×7) cm³

= 539 cm³

Therefore the volume of cylinder is 539 cm³.