11.5. Pyramids http://www.ck12.org
- What is the area of the base of this regular tetrahedron?
- What is the height of this figure? Be careful!
- Find the volume. Leave your answer in simplest radical form.
19.ChallengeIf the sides are lengths, what is the volume?
Aregular octahedronhas eight equilateral triangles as its faces. Use the diagram to answer questions 20-22.
20.Describehow you would find the volume of this figure.- Find the volume. Leave your answer in simplest radical form.
22.ChallengeIf the sides are lengths, what is the volume?