show the triangle with vertices a(2,6) ,b(1,3) and c(4,5) is a scalene triangle
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A(2,6) B(1,3) C(4,5)
AB=√(2-1)²+(6-3)²
AB=√1²+3²
AB=√10
BC=√(4-1)²+(5-3)²
BC=√3²+2²
BC=√9+4
BC=√13
CA=√(4-2)²+(6-5)²
CA=√2²+1²
CA=√4+1
CA=√5
Length of the sides are not equal.
So it's a scalene triangle
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