1.

Determine the vertex which contains a right angle in ABC where A( 4,-2),B(7,9)C(7,2)

Answer» AB ^2= (4-7}^2+ (-2-9)^2=130

BC^2 = (7-7)^2+(9-2)^2=49

CA^2 = (4-7)^2+(-2-2)^2=25

The values do not support that given three coordinates  are vertices of a right  triangle ABC as Pythagoras theorem does not fit here .


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