First, let's identify what r and h are from the equation by looking at the diagram of the cone
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**Remember, r is the radius of a circle .... In the diagram, all we see is the diameter of the circle at the top of the cone. This is okay because radius is half of the diameter. The Diameter is 2
r = 1
Now h is the height of the cone. The diagram shows up that ...
h = 5
*Now let's plug in what we know into the equation they give us
V = πr²h / 3
*The instructions told us we can use "3" for π
V = 3(1)²(5) / 3
* quick tip! We see that the top AND bottom of the fraction both have the number 3, so we can cancel it out. (but you don't have to do this and you can work out the problem normally. We will still get the same answer) BUT, If we do cancel it out, now we are left with ...
V = (1)²(5)
1² = 1
so... V = 1 × 5
The volume of the cone is 5cm³