`O, A, B` are vertices of triangle whose sides are given by `(5x +12y)^2 - 3(12x - 5y)^2 =0, 5x +12y - 78 =0` then `AB =`

Find the vertices of the triangle whose sides are y+2x=3, 4y+x=5 and 5y+3x=0

Find the vertices of the triangle whose sides are y+2x=3, 4y+x=5 and 5y+3x=0

Find the circumcentre of the triangle whose sides are given by x+y+2=0, 5x-y-2=0 and x-2y+5=0 .

Find the orthocentre of the triangle whose sides have the equations y = 15, 3x = 4y, and 5x + 12y = 0.

Find the equations of the bisectors of the internal angles of the triangle whose sides are : 3x + 4y -6 = 0, 12x -5y-3 = 0, 4x - 3y + 12 =0 .

Find the angles of the triangle whose sides are x+y-4=0, 2x+y-6=0, 5x+3y-15=0