Given a soda can with a volume of 36 and a diameter of 4, what is the volume of a cone that fits perfectly inside the soda can? (Hint: only enter numerals in the answer blank).
First we need to find the heigh of the soda can be rearanging the volume formula, \(V = pi * r^2* h\). We can make that \(h = \frac{V}{pi * r^2}\) We know that V is 36 and radius is half of the diameter, so radius is 2. \(h = \frac{36}{pi * 2^2}\)
\(h = \frac{36}{pi * 4}\)
h = 2.87
Now, we can use the height to figure out the volume of a cone. The volume of a cone is \(V = pi * r^2 * \frac{h}{3}\)
R is 2 again and h is 2.87
\(V = pi * 2^2 * \frac{2.87}{3}\)
\(pi * 4 * .96\)
12.56*.96 = 12.0576
So a cone with a volume of 12.0576 is the largest that will fit into the soda can
For this case what we should do is model the soda can as a cylinder.
We have then:
\(V = \pi * r ^ 2 * h
\)
Where,
r: can radius
h: height of the can
From here, we clear the value of the height:
\(h = \frac{V}{\pi * r ^ 2}
\)
Substituting values we have:
\(h = \frac{36}{\pi * 2 ^ 2}
h = 2.87
\)
We are now looking for the volume of the cone.
We have then:
\(V = (\frac{1}{3}) * (\pi) * (r ^ 2) * (h)
\)
Substituting values we have:
\(V = (1/3) * (\pi) * (2 ^ 2) * (2.87)
V = 12.02
\)
Answer:
the volume of a cone that fits perfectly inside the soda can is:
\(V = 12.02\)