Question

prove that the point A(7,10)B(-2,5)C(3,-4) are the vertices of issoceles right angle triangle

Answer 1

given , The points are A(7,10) ,B(-2,5) and C(3,-4).
side AB=√[(-2-7)²+(5-10)²=√{81+25}=√106
BC=√[(3+2)²+(5+4)²]=√106
AC=√[(7-3)²+(10+4)²]=√212
AB=BC( property of isosceles triangle)
hence ,proved.
I hope this will right.
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