Question

What is the ratio of the volumes of two similar prisms if the ratio of their sides is 3 : 7?

Answer 1

Answer:

Step-by-step explanation:

The ratio of the sides is the same as the one-to-one measure of the similar figures.  To get to the ratio of their areas, square the one-to-one values.  To get to the ratio of their volumes, cube the one-to-one values.

If the one-to-one is 3:7, then the ratio of their volumes is

3³:7³ which is 27:343