Questions  

If A = (-1,6,6), B = (-4,9,6), G=13(5,22,22) and G is the centroid of the Δ​ABC , then the name of the triangle ABC is

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a
an isosceles triangle
b
a right angled triangle
c
an equilateral triangle
d
a right-angled isosceles triangle
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detailed solution

Correct option is D

C = 3G-A-B, AB=18,BC=36,AC=18


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In the  Δ​ABC if AB=2,  AC=20, B = (3,2,0) and C = (0,1,4) then the length  of the median passing through A is

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