It's an Octahedron!
Geometry
Level
2
What is the volume of an octahedron with a side length of 3?
Express your answer to the nearest hundredth. (decimals are in here)
The answer is 12.73.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
The volume formula for an octahedron is 3 r o o t 2 x a^3. 3^3 is 27, and since the 3 and the 27 cancel to get 9, you multiply 9 by root2 and you get 12.72792206, or 12.73.