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GeoGebraGeoGebra Classroom

Classwork 54 #2

Problem

is the midpoint of side of . Any line is drawn through outside the triangle and perpendiculars , , and are drawn to this line. Prove that .
In the above diagram, you can move point to change what the original triangle looks like. You can also move around to change which line through . Notice that the blue segments always appear to be congruent