The points \( (0,7,10),(-1,6,6) \) and \( (-4,9,6) \) are the vertices of....

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The points \( (0,7,10),(-1,6,6) \) and \( (-4,9,6) \) are the vertices of
\( \mathrm{P} \)
(1) a right angled isosceles triangle
W.
(2) equilateral triangle
(3) an isosceles triangle
(4) an obtuse angled triangle


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