AB is a chord of the circle and AOC is its diameter , such that `angleACB=60^(@)` . If AT is the tangent to the circle at the point A , then find the measure of `angleBAT`

In the given figure A,B is a chord of the circle and AOC is its diameter ,such that angleACB=50^(@) .If AT is the tangent to the circle at the point A, then angleBAT is equal to :

In figure, AB is a chord of the circle and AOC is its diameter such that angleACB=50^(@) . If AT is the tangent to the circle at the point A, then angleBAT is equal to

In figure, AB is a chord of the circle and AOC is its diameter such that angleACB=50^(@) . If AT is the tangent to the circle at the point A, then angleBAT is equal to

In figure, AB is a chord of the circle and AOC is the diameter such that angleACB=50^(@) . If AT is the tangent to the circle at the point A, then angleBAT is equal to : (a) 45^(@) , (b) 60^(@) , (c) 50^(@) , (d) 55^(@)

In figure, AB is a chord of the circle and AOC is the diameter such that angleACB=50^(@) . If AT is the tangent to the circle at the point A, then angleBAT is equal to : (a) 45^(@) , (b) 60^(@) , (c) 50^(@) , (d) 55^(@)

In Fig RQ is a chord of the circle and POQ is its diameter such that angle RPQ = 30^@ . If QT is the tangent to the circle at the point Q them find angleRQT .

AB is the diameter and AC is a chord of a circle with centre O such that angle BAC=30^(@) . The tangent to the circle at C intersects AB produced in D. Show that BC=BD.

AB is a diameter and AC is a chord of a circle with centre O such that angleBAC=30^@ . The tangent at C intersects AB at a point D. Prove that BC=BD.

O is the centre of a circle. AB is a chord of the circle but not its diameter. OC is perpendicular to AB. If OC = CB and radius of the circle be 7 cm, then the length of AB is