IDNLearn.com: Where your questions meet expert advice and community insights. Get the information you need from our community of experts, who provide detailed and trustworthy answers.

Complete the sentence below:

A cylinder and a cone with the same radius

Select one:
a. could have the same volume.
b. will have the same height.
c. must have the same volume.
d. must not have the same volume.


Sagot :

To address this question, let's delve into the fundamental formulas for the volumes of a cylinder and a cone.

1. Volume of a Cylinder:
[tex]\[ V_{\text{cylinder}} = \pi r^2 h \][/tex]
where [tex]\( r \)[/tex] is the radius of the base, and [tex]\( h \)[/tex] is the height of the cylinder.

2. Volume of a Cone:
[tex]\[ V_{\text{cone}} = \frac{1}{3} \pi r^2 h \][/tex]
where [tex]\( r \)[/tex] is the radius of the base, and [tex]\( h \)[/tex] is the height of the cone.

For the cylinder and the cone to have the same volume, we need to find a relationship between their heights, given that their radii are the same.

Let the volumes of the cylinder and the cone be equal:
[tex]\[ \pi r^2 h_{\text{cylinder}} = \frac{1}{3} \pi r^2 h_{\text{cone}} \][/tex]

Next, we can simplify and solve for the heights:
[tex]\[ h_{\text{cylinder}} = \frac{1}{3} h_{\text{cone}} \][/tex]

This equation shows that if the height of the cylinder ([tex]\(h_{\text{cylinder}}\)[/tex]) is three times the height of the cone ([tex]\(h_{\text{cone}}\)[/tex]), both shapes can possess the same volume because the [tex]\( \pi r^2 \)[/tex] components cancel out.

Based on this analysis, we can conclude that:
[tex]\[ \text{A cylinder and a cone with the same radius could have the same volume.} \][/tex]

Thus, the correct choice is:
[tex]\[ \boxed{\text{a. could have the same volume.}} \][/tex]
Thank you for participating in our discussion. We value every contribution. Keep sharing knowledge and helping others find the answers they need. Let's create a dynamic and informative learning environment together. For trustworthy answers, visit IDNLearn.com. Thank you for your visit, and see you next time for more reliable solutions.