http://www.ck12.org Chapter 11. Surface Area and Volume
7.
8.
Find the surface area and volume of the regular pyramids. Round your answers to 2 decimal places.
9.
10.
- Aregular tetrahedronhas four equilateral triangles as its faces. Find the surface area of a regular tetrahedron
with edge length of 6 units. - Using the formula for the area of an equilateral triangle, what is the surface area of a regular tetrahedron, with
edge lengths?
For questions 13-15 consider a square with diagonal length 10
√
2 in.- What is the length of a side of the square?
- If this square is the base of a right pyramid with height 12, what is the slant height of the pyramid?
- What is the surface area of the pyramid?
Aregular tetrahedronhas four equilateral triangles as its faces. Use the diagram to answer questions 16-19.