Central Angle of a Tetrahedron A tetrahedron is a solid with four triangular faces, four vertices, and six edges, as shown in the figure. In a regular tetrahedron the edges are all of the same length. Consider the tetrahedron with vertices
(a) Show that the tetrahedron is regular.
(b) The center of the tetrahedron is the point
[Note: In a molecule of methane
Trending nowThis is a popular solution!
Chapter 9 Solutions
Algebra and Trigonometry (MindTap Course List)
- Area In these exercises we find the areas of plane figures. Draw the rectangle with vertices A(1,3,),B(5,3),C(1,3) and D(5,3) on a coordinate plane. Find the area of the rectangle.arrow_forwardArea In these exercises we find the areas of plane figures. Draw the parallelogram with vertices A(1,2),B(5,2),C(3,6) and D(7,6) on a coordinate plane. Find the area of the parallelogram.arrow_forward
- Algebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningAlgebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageCollege AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
- Elementary Geometry for College StudentsGeometryISBN:9781285195698Author:Daniel C. Alexander, Geralyn M. KoeberleinPublisher:Cengage Learning