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**Find the volume of an oblique cylinder**

EXAMPLE 4 Find the volume of an oblique cylinder Find the volume of the oblique cylinder. SOLUTION Cavalieri’s Principle allows you to use Theorem 12.7 to find the volume of the oblique cylinder. V = π r2h Formula for volume of a cylinder = π(42)(7) Substitute known values. = 112π Simplify.

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**Find the volume of an oblique cylinder**

EXAMPLE 4 Find the volume of an oblique cylinder ≈ Use a calculator. The volume of the oblique cylinder is about cm3. ANSWER

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EXAMPLE 5 Solve a real-world problem SCULPTURE The sculpture is made up of 13 beams. In centimeters, suppose the dimensions of each beam are 30 by 30 by 90. Find its volume.

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**Solve a real-world problem**

EXAMPLE 5 SOLUTION The area of the base B can be found by subtracting the area of the small rectangles from the area of the large rectangle. B = Area of large rectangle – 4 Area of small rectangle = – 4( ) = 35,100 cm2

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**Solve a real-world problem EXAMPLE 5**

Use the formula for the volume of a prism. V = Bh Formula for volume of a prism = 35,100(30) Substitute. = 1,053,000 cm3 Simplify. The volume of the sculpture is 1,053,000 cm3, or m3.

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GUIDED PRACTICE for Example 4 and 5 4. Find the volume of the oblique prism shown below. The volume of the oblique prism is 180m3 ANSWER

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GUIDED PRACTICE for Example 4 and 5 5. Find the volume of the solid shown below. ANSWER ft3

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