Monday, July 16, 2007

Janet's Tetrahedron

This is a picture of my Tetrahedron. My partner and I made this tetrahedron on July, 13th. We used many straws for it. The straws were three different sizes. We also used three different colors of yarn to make the tetrahedron. There are many triangles in the tetrahedron. They were regular triangles. The triangles are equilateral and equiangular. The tetrahedron is also a polyhedron because it is three dimensional. Inside the tetrahedron, there is centroid, orthocenter, incenter, and circumcenter.It is in the middle where all the straws connect. We connected the straws together to make the tetrahedron concurrent. My partner and I connected the straws on the top and made it inverse.

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