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Make D as a term of a. 1/3πr²h = 4/3πr³ Volume of a cone where h is D and radius is D/2 Volume of a sphere...

Make D as a term of a.
1/3πr²h = 4/3πr³
Volume of a cone where h is D and radius is D/2
Volume of a sphere with a as the radius

Answer

Volumes of a Cone and a Sphere

1. Volume of a Cone

The formula for the volume of a cone is given by:

V_cone = (1/3)πr²h

Where:

  • r = Radius of the cone
  • h = Height of the cone

In this case, let:

  • h = D
  • r = D/2

Substituting these values into the volume formula:

V_cone = (1/3)π(D/2)²D

This simplifies to:

V_cone = (1/3)π(D²/4)D

Thus:

V_cone = (1/12)πD³

2. Volume of a Sphere

The formula for the volume of a sphere is given by:

V_sphere = (4/3)πa³

Where:

  • a = Radius of the sphere

Assuming a = D (using D as the radius), the volume becomes:

V_sphere = (4/3)πD³

3. Establishing the Relationship between D and a

Setting the volume of the cone equal to the volume of the sphere, we have:

(1/12)πD³ = (4/3)πD³

Divide both sides by π:

(1/12)D³ = (4/3)D³

Now, isolating D:

1/12 = 4/3

This indicates that the assumption must be checked or that the relationship is established differently.

To find D in terms of a, you can express it in relation to a from either volume:

D³(a) = 4D³

Finally, we can express D in terms of various constants:

D = a

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