PDF chapter test TRY NOW
Without using Pythagoras theorem, show that the vertices \((1,-4)\), \((2,-3)\) and \((4,-7)\) form a right angled triangle.
Answer:
Slope of \(AB =\)
Slope of \(BC =\)
Slope of \(AC =\)
Therefore, \(\triangle ABC\) is because the product of the slopes of \(AB\) and \(AC\) is .
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