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GAOKAO · Solid Geometry · Advanced

Solid Geometry: Truncated cone volumes — math: volume math?

Sphere, cylinder, cone volume.

Try the problem

Truncated cone volumes — r=2,R=4,h=6r=2,R=4,h=6: volume /π/\pi?

Hint and answer

Concept to use

Composite solids.

Hint

13h(R2+Rr+r2)\tfrac13 h(R^2+Rr+r^2).

Answer

56

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