The vertices of a triangle are `(-6,0)` , `(0,0)` and `(0,8)` .The circum-radius of the triangle is

The vertices of a triangle are (0, 0), (1,0) and (0,1). Then excentre opposite to (0, 0) is

If coordinates of the vertices of a triangle are (2,0), (6,0) and (1,5), then distance between its orthocentre and circumcentre is

The perimeter of a triangle with vertices (0,3) (0,0) and (4,0) is

The perimeter of a triangle with vertices (0,4),(0,0) and (3,0) is

The vertices of a triangle are (2,0) (0,2) (4,6) then the equation of the median through the vertex (2,0) is