Question

volume of cylinder is 49 cm³ and height is 7 cm . find radius of cylinder.

Answer 1

Hello !!


Height of cylinder = 7 cm

Volume of cylinder = 49 cm³



πR²H = 49



22 / 7 × R² × 7 = 49




R² = (49/22)



R = ✓2.22 = 1.48 cm



Hence,


Radius of cylinder = 1.48 cm.

Answer 2

Answer:

• Radius of cylinder = 1.49 cm (Approx).

Step-by-step explanation:

Given:

• Volume of cylinder = 49 cm³
• Height of cylinder = 7 cm

To Find:

• Radius of cylinder

Now, we know that.

⇒ Volume of cylinder = πr²h

⇒ 49 = 22/7 × 7 × r²

⇒ 49 = 22 × r²

⇒ r² = 49/22

⇒ r² = 2.22

⇒ r = √2.22

⇒ r = 1.49 cm (Approx)

Hence, Radius of cylinder = 1.49 cm (Approx).