SOLUTION: Show that A(-1,-2),B(4,-2)and(4,3)are the vertices of a right-angled triangle

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Question 640848: Show that A(-1,-2),B(4,-2)and(4,3)are the vertices of a right-angled triangle
Answer by benni1013(206) About Me  (Show Source):
You can put this solution on YOUR website!
Graph the points, count the number of units between the legs and if it agrees with the Pythagorean theorem it is a right triangle.