Question

A company is designing a new cylindrical water bottle. The volume of the bottle will be 211 cm^3. The height of the water bottle is 7.9 cm. What is the radius of the water bottle? Use 3.15 for pi

Answer 1

The correct answer is 2.912 cm.

Explanation:

A company is designing a new cylindrical water bottle.

Volume of a cylinder is given by π ×
`r^(2)` × h, where h is the height of the cylinder and r is the radius of the cylinder.

The volume of each bottle will be 211
`cm^(3)`.

The height (h) of the water bottle be 7.9 cm.

Let the radius of the bottle be r cm.

∴ π ×
`r^(2)` × h = 211 ; (π = 3.15)

⇒
`r^(2)` × 24.885 = 211

⇒ r = 2.912

The radius of the water bottle is 2.912 cm.