An equilateral triangle has a side of 8. If one corner of the triangle is removed by slicing off an equilateral triangle of side 2, find the perimeter of the remaining quadrilateral.
geometry - drwls, Wednesday, December 14, 2011 at 11:42am
The remaining quadrilateral will have side lengths of 8, (8-2), (8-2), and 2.
Add them up for the perimater.