The lengths of the sides of a triangle is x, y mid z respectively. If \[{{\mathbf{x}}^{\mathbf{2}}}\mathbf{+}{{\mathbf{y}}^{\mathbf{2}}}\mathbf{+}{{\mathbf{z}}^{\mathbf{2}}}\mathbf{=xy+yz+xz,}\] then the triangle is:

The lengths of the sides of a triangle is x, y mid z respectively. If

1.	The lengths of the sides of a triangle is x, y mid z respectively. If \[{{\mathbf{x}}^{\mathbf{2}}}\mathbf{+}{{\mathbf{y}}^{\mathbf{2}}}\mathbf{+}{{\mathbf{z}}^{\mathbf{2}}}\mathbf{=xy+yz+xz,}\] then the triangle is:
A.	Isosceles
B.	Equilateral
C.	Scalene
D.	Right - angled
Answer» C. Scalene

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The lengths of the sides of a triangle is x, y mid z respectively. If \[{{\mathbf{x}}^{\mathbf{2}}}\mathbf{+}{{\mathbf{y}}^{\mathbf{2}}}\mathbf{+}{{\mathbf{z}}^{\mathbf{2}}}\mathbf{=xy+yz+xz,}\] then the triangle is:

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