Is the triangle, whose vertices are `(5, -6), (1, 2) and (-7, -2)`, a right-angled triangle, an acute-angled triangle or an obtuse-angled triangle?

If the triangle whose vertices are A(4,3), B(6,-2) and C(k,-3) is right -angled at A, then : K=

The triangle with vertices A (2, 7), B (4, y) and C(-2, 6) is right angled at A if

Show that the triangle with vertices (6,10,10),(1,0,-5) and (6,-10,0) is a right angled triangle

Show that the triangle vertices (6,10,10), (1,0,-5) and (6,-10,0) is a right - angled triangle .

Classify these triangles as right, acute or obtuse angled triangle.

Find the angles of a triangle whose vertices are A(0,-1,-2),B(3,1,4) and C(5,7,1)

If in a /_\ABC, sin^2A+sin^2B+sin^2C=2, then /_\ is always a an (A) isosceles triangle (B) right angled triangle (C) acute angled triangle (D) obtuse angled triangle

A triangle whose one angle is more than 90^(@) is called a scalene triangle (b) a right triangle an acute triangle (d) an obtuse triangle