The cosine of the angle of the triangle with vertices `A(1,-1,2),B(6,11,2)` and `C(1,2,6)` is

Using distance formula, calculate the cosine of angle A of the triangle with vertices A(1,-1,2),B(6,11,2) and C(1,2,6)

Calculate the cosine of the angle A of the triangle with vertices A(1,-1,2), B(6,11,2),C(1,2,6).

The cosine of the angle A of the triangle with vertices A(1, -1, 2), B(6, 11, 2), C(1, 2, 6) is

Using distance formula, calculate the cosine of ngle A of the triasngle with vertices A(1,-1,2),B(6,11,2) and C(1,2,6)

Find the area of the triangle if vertices are (1,1), (2,2) and (0,1)

Area of the triangle with vertices ( - 2,2), (1,5) and (6, - 1 ) is

Calculate the direction cosines of the sides of the triangle whose vertices are A(4, 5, 0), B(2, 6, 2) and C(2, 3, -1).

Find the co-ordinates of the orthocenter of the triangle whose vertices are A(2,-2),B(1,1) and C(-1,0)

Find the co-ordinate of the orthocentre of a triangle whose vertices are A(-2,-3),B(6,1)and C(1,6).