AB is a chord of the circle `x^2+ y^2=25`. The tangents of A and B intersect at C. If (2, 3) is the mid-point of AB,then area of the quadrilateral OACB is

AB is a chord of the circle x^(2)+y^(2)=9 .The tangents at A and B intersect at C. If M(1,2) is the midpoint of AB,then the area of triangle ABC is

Let (a, b) is the midpoint of the chord AB of the circle x^2 + y^2 = r^2. The tangents at A and B meet at C, then the area of triangle ABC

AB is a chord of the circle x^(2)+y^(2)-2x+4y-20=0. If the tangents at A and B are inclined at 120^(@), then AB is

(a,b) is the midpoint of the chord AB of the circle x^(2)+y^(2)=r^(2) . The tangents at A,B meet at C, then the area of triangleABC=

AB is a chord of the parabola y^(2)=4ax such that the normals at A and B intersect at the point C(9a, 6a). If the area of triangle ABC is 320m^(2) , then a is _________

If OA and OB are the tangents from the origin to the circle x^(2)+y^(2)+2gx+2fy+c=0 and C is the centre of the circle,the area of the quadrilateral OACB is

AB is a chord of the circle x^2 + y^2 = 25/2 .P is a point such that PA = 4, PB = 3. If AB = 5, then distance of P from origin can be:

If OA and OB are the tangents from te origin to the circle x^2+y^2 +2gx+2fy+c=0 and C is the centre of the circle, the area of the quadrilateral OACB is