C-08-Q186mediumsingle_mcq
From an external point , two tangents are drawn to a circle with centre . Then is the perpendicular bisector of—
From an external point , two tangents are drawn to a circle with centre . Then is the perpendicular bisector of—
- athe radius
- bthe chord through the points of contact
- cany chord
- dthe diameter
ব্যাখ্যা
The two tangent lengths from are equal and are radii, so is the axis of symmetry of the figure; hence it bisects the chord joining the points of contact at right angles.