Find the mass of a solid cone of platinum with a height of 21 cm and a diameter of 8 cm.

For this case we have that by definition, the density is given by:

ρ =

Where:

M: It's the mass

V: It's the volume

The volume of a solid cone is given by:

Where:

A: It's the radio

h: It's the height

Substituting the data we have:

On the other hand, we have that by definition, the density of the platini is given by:

Substituting in the initial formula, we look for the mass:

The mass of the platinum cone is 8621.2 grams.

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step-by-step explanation: