" Find the type of triangle formed by "(1,-1),(-1,1)" and "(sqrt(3),sqrt(3))

The incentre of a triangle with vertices (7,1),(-1,5) and (3+2sqrt(3),3+4sqrt(3)) is

The orthocentre of the triangle formed by (2, -1//2), (1//2, -1//2) and (2, (sqrt(3)-1)//2) is

The incentre of a triangle with vertices (7, 1),(-1, 5) and (3+2sqrt(3),3+4sqrt(3)) is

The incentre of a triangle with vertices (7, 1),(-1, 5) and (3+2sqrt(3),3+4sqrt(3)) is

The incentre of a triangle with vertices (7, 1),(-1, 5) and (3+2sqrt(3),3+4sqrt(3)) is

Show that the following sets of points are the vertices of an equilateral triangle :- (1, 1),(- 1,-1) and (-sqrt3,sqrt3) .

Inradius of the triangle with vertices (1,1), (-1,-1), (-sqrt3, sqrt3) is

The perimeter of the triangle formed by the points (0,0),(1,0) and (0,1) is 1+-sqrt(2) (b) sqrt(2)+1(c)3(d)2+sqrt(2)

Prove that the points A(1, 1) , B(-1, -1) and C(sqrt(3), -sqrt(3)) are the vertices of an equilateral triangle.

Find the angles of the triangle whose sides are (sqrt(3)+1)/(2sqrt(2)), (sqrt(3)-1)/(2sqrt(2)) and sqrt(3)/2 .