Question

# A drainage tile is a cylindrical shell 21 cm long. The inside and outside diameters are 4.5 cm and 5.1 cm respectively. What is the volume of the clay required for the tile?

Hint:

### Subtracting the volume of the shell with inner radius from the volume with outer radius would give us the volume of clay required for the tile.

## The correct answer is: The volume of the clay required for the tile is 95.04 cm3

### Explanations:

Step 1 of 2:

Given, h = 21cm; r = 4.5/2 cm (inner radius) and R = 5.1/2 cm (outer radius)

The volume with inner radius cm^{3}

The volume with outer radius = cm^{3}

Step 2 of 2:

The volume of the clay required for the tile

Final Answer:

The volume of the clay required for the tile is 95.04 cm^{3}

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