If from an extrenal point B of a circle with centre 0, two tangents BC and BD are drawn such that `angleDBC=120^(@)`, prove that `BC+BD=BO` i.e., BO=2BC.

If from an external point B of a circle with centre O, two tangents BC and BD are drawn such that angleDBC=120^(@), prove that BC+BD=BO.

Two tangent segments BC and BD are drawn to a circle with centre O and radius r such that angleDBC=120^(@) . Prove that BO=2BC.

Two tangent segments BC and BD are drawn to a circle with centre O and radius r such that angleDBC=120^(@) . Prove that BO=2BC.

Two tangents are drawn from an external point A of the circle with centre at O which touches the circle at the points B and C. Prove that AO is the perpendicular bisector of BC.

ABC is a triangle with AB= AC and D is a point on AC such that BC^(2)= AC xx CD . Prove that BD= BC.

ABC is an isosceles triangle with AB=AC and D is a pooint on AC such that BC^(2)=ACxCD .Prove that BD=BC

The tangent drawn from an extenral point A of the circle with centre C touches the circle at B. If BC =5 cm, AC=13 cm, then the length of AB=

ABC is a triangle in which AB=AC and D is a point on AC such that BC^(2)=AC xx CD .Prove that BD=BC .

In Figure,AD=AE and D and E are points on BC such that BD=EC .Prove that AB=AC