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The volume of a cylinder can be found by multiplying the area of it's circular face by it's length.

The area of a circle is equal to pi times the square of it's radius, so we can say:

v = πr2h

= π × 16 × 9

= π × 144

≈ 3.14159 × 144

≈ 452.38896

So the cylinder has a volume of approximately 452.39 units cubed.

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Q: What is the volume of a cylinder with a radius of 4 and a length of 9?
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