Question

A thermos in the shape of a cylinder will be filled with hot chocolate. If the thermos has a radius of 4 inches and is 12 inches tall, which formula could be used to find the number of cubic inches of hot chocolate needed to completely fill this thermos?

�
=
3.14
⋅
16
⋅
12
V=3.14⋅16⋅12

�
=
3.04
⋅
8
⋅
12
V=3.04⋅8⋅12

�
=
3.14
⋅
4
⋅
12
V=3.14⋅4⋅12

�
=
3.14
⋅
4
⋅
144
V=3.14⋅4⋅144

Answer 1

A=3.14⋅16⋅12V=3.14⋅16⋅12

Explanation:

The equation to find the volume of a cylinder is h(3.14r^2), where h is the height of the container and r is the radius of the circle base. This works because for all regular prisms, the volume can be found by finding the area of the base x the height of the prism. 3.14r^2 = area of the base circle and 12 is the height, so therefore, we have found the volume. Additionally,3.14 is substituted for pi, most of the time in these equations the pi symbol is used.

Hope this helps!