Math Problem Statement

the volume of a right cone is defined as V=πr^2h/3 . What is the simplified form of the expression that represents the cube of this volume, V^3 ? Treat the constant π as you would a variable in your answer

Solution

Given the volume of a right cone V=πr2h3V = \frac{\pi r^2 h}{3}, we need to find the simplified form of the expression that represents the cube of this volume, V3V^3.

Step 1: Write the volume expression.

The volume of the cone is: V=πr2h3V = \frac{\pi r^2 h}{3}

Step 2: Cube the volume expression.

To find V3V^3, we raise the expression for VV to the third power: V3=(πr2h3)3V^3 = \left(\frac{\pi r^2 h}{3}\right)^3

Step 3: Expand the cube.

When cubing a fraction, cube both the numerator and the denominator: V3=(πr2h)333V^3 = \frac{(\pi r^2 h)^3}{3^3}

Step 4: Simplify the numerator and the denominator.

Now, simplify each part:

  • The denominator becomes 33=273^3 = 27.
  • The numerator becomes (πr2h)3=π3(r2)3h3=π3r6h3(\pi r^2 h)^3 = \pi^3 (r^2)^3 h^3 = \pi^3 r^6 h^3.

So, the simplified form of the expression is: V3=π3r6h327V^3 = \frac{\pi^3 r^6 h^3}{27}

Final Answer:

The simplified form of the expression that represents the cube of the volume is: V3=π3r6h327V^3 = \frac{\pi^3 r^6 h^3}{27}

Would you like any more details or have any questions?


Here are 8 related questions for further exploration:

  1. How does the volume formula change if the cone is a right circular cone with a different base shape?
  2. What is the derivative of the volume of a cone with respect to the radius rr?
  3. How would you express the surface area of a cone in terms of rr and hh?
  4. How does the volume of a cone compare to the volume of a cylinder with the same base and height?
  5. What is the physical interpretation of cubing the volume in real-world scenarios?
  6. How would the expression for V3V^3 change if the cone had an elliptical base?
  7. What is the effect on the volume if the height of the cone is doubled while the radius remains the same?
  8. How would you compute the volume of a cone if the height is not perpendicular to the base?

Tip: When dealing with volume formulas, remember to check the units and ensure they are consistent throughout the calculation.

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Math Problem Analysis

Mathematical Concepts

Geometry
Volume of Cones
Cube of Volume

Formulas

Volume of a cone: V = πr^2h/3

Theorems

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Suitable Grade Level

Advanced High School