Use the formula slope = on each of the 3 sides in turn then add them together.
The points L(4,0), M(10,0), and N(7,5) form Triangle LMN. What is the sum of the slopes of the three sides
hai..first thing theat you should do is to get the slopes of the lines that forms the triangle,then simlpy add them..:use the formula slope=y-y1/x-x2
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