The points `(0,0),(2,0),(0,3)` and `(-c,0)` are concylic.Then the value of `c` is

If the points (2, 0), (0, 1), (4, 5)and (0, c) are concyclic, then the value of c, is

The distinct points A(0,0),B(0,1),C(1,0), and D(2a,3a) are concyclic than

If the points (a,0),(b,0),(0,c), and (0,d) are concyclic (a,b,c,d>0), then prove that ab=cd.

If the points A( 2,2),O (0,0) and C(a , b) are collinear, then

If the points A(1,2) , B(0,0) and C (a,b) are collinear , then

find the value of 'c' if the points (2,0),(0,1)(4,5) and (0,c) are concylic

The coordinates of the mid-points of the sides of DeltaPQR , are (3a,0,0), (0,3b,0) and (0,0,3c) respectively, then the area of DeltaPQR is