An equilateral triangle with lines going to the center, like the top view of a tetrahedron.
Adapted from this Google Image result: https://philhart.edublogs.org/files/2015/06/triangle_2-1ik0gui.png
web page chart
PDF chart
An equilateral triangle with lines going to the center, like the top view of a tetrahedron.
Adapted from this Google Image result: https://philhart.edublogs.org/files/2015/06/triangle_2-1ik0gui.png
web page chart
PDF chart