Question

if the diameter of a base of a cylinder 7 cm and height 3 cm, then find volume of a cylinder

Answer 1

Volume of cylinder = Лr²h ⇒volume = 22/7*7²*3⇒volume= 22*7*3 ⇒volume= 462cm³

Answer 2

Answer:

• Volume of cylinder = 115.5 cm³

Step-by-step explanation:

Given:

• Diameter of cylinder = 7 cm
• Height of cylinder = 3 cm

To Find:

• Volume of cylinder

Now, first we will find radius of cylinder,

⇒ Radius = Diameter/2

⇒ Radius = 7/2

⇒ Radius = 3.5 cm

Now, we know that,

⇒ Volume of cylinder = πr²h

⇒ Volume of cylinder = 22/7 × 3.5 × 3.5 × 3

⇒ Volume of cylinder = 22 × 0.5 × 3.5 × 3

⇒ Volume of cylinder = 11 × 10.5

⇒ Volume of cylinder = 115.5 cm³

Hence, Volume of cylinder = 115.5 cm³