similar pyramids: find ratios of heights, base, total areas

[ducksmeowtoo]

two similar pyramids have volumes 3 & 375. Find the ratios of:

a. the heights
b. the base areas
c. the total area

 

[stapel]

What formulas do you have? How have you tried to use the fact that the shapes are similar?

Please be specific. Thank you.

Eliz.