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Unformatted text preview: 13-8 The Use of Coordinate Systems in Proving Geometric Theorems
A) Example a. Show that is a right triangle if its vertices are A(2,4,1), B(11,-8,1) and C (2,4,21) b. B) How to place Figures on a coordinate system to do the proofs a. Rectangle b. Parallelogram/Rhombus c. Square d. Trapezoid C) Additional notes a. When dealing with midline/median/ or anything when you will need to find midpoints i. Use double coordinates ii. example b. They may not always give coordinates in the 1st quadrant ...
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- Spring '09