A cylinder has a 10-inch diameter and is 15 inches tall. A 6-inch-diameter ball is placed within the cylinder, and then the cylinder is filled with water. How much water is in the cylinder? Give your answer in terms of pi. 339π in3 375π in3 381π in3 392π in3

Respuesta :

Answer:

339π in³

Explanation:

= π(5²)(15) - (4/3)π(3³)

= π(375 -36) = 339π . . . in³

The amount of water that can be filled in the considered cylinder given the 6-inch ball is still in it, is given by: Option 39π in³

What is the volume of a cylinder?

Suppose that the radius of considered right circular cylinder be 'r' units.

And let its height be 'h' units.

Then, its volume is given as:

[tex]V = \pi r^2 h \: \rm unit^3[/tex]

Volume measures 3d space.

We will measure the amount of water that can be filled in the cylinder in terms of volume.

Given that:

  • Cylinder has 10 inch diameter
  • Cylinder is 15 inch tall.
  • A 6-inch diameter ball is placed inside the cylinder

Radius of cylinder = half of its diameter = 10/2 = 5 inches

Thus, we get:

Volume of the considered cylinder = [tex]V = \pi r^2 h = 5^2 \times 15 \times \pi = 375\pi \: \rm in^3[/tex]

Radius of the ball (assuming spherical in shape) = half of its diameter = 6/2 = 3 inches

Volume of that ball (assuming spherical in shape) = [tex]\dfrac{4}{3} \pi (3)^3 = 36\pi \: \rm in^3[/tex]

Space remaining in the cylinder for water to be filled (assuming water can't go inside the ball) = Space in the cylinder - space taken by the ball = volume of the cylinder - volume of the ball = [tex](375-36)\pi = 339\pi \: \rm in^3[/tex]

Thus, the amount of water that can be filled in the considered cylinder given the 6-inch ball is still in it, is given by: Option 39π in³

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