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26 votes
26 votes
A cone and its dimensions are shown in the diagram. Which measurement is closest to the volume of the cone in cubic inches?

A cone and its dimensions are shown in the diagram. Which measurement is closest to-example-1
User Abid Rakhmansyah
by
2.6k points

1 Answer

22 votes
22 votes
20 Cubic Inches^3.

Step-by-step explanation:

The volume of a cone is Pi*R^2*H*1/3

We know the height, but we are given the diameter instead of radius. So divide 5.625 by 2. You get 2.8125.

Plug everything into the formula.

Pi*2.8125^2*7.5*1/3

(The ^2 means squared, or to the second power)

You get a number close to 20. Since we don’t know Pi, and we are not given a substitute for Pi, we make the answer in terms of Pi.

20 Cubic Inches^3.

Also, people who don’t know the answers to questions shouldn’t just put a random answer for the points. It’s unfair.


User Superjer
by
2.8k points
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