Mathematics
In the given figure, O is the centre of the circumcircle of ΔABC. Tangents at A and B intersect at T. If ∠ATB = 80° and ∠AOC = 130°, calculate ∠CAB.
Related Questions
In the given figure, PA and PB are two tangents to the circle with centre O. If ∠APB = 50°, find :
(i) ∠AOB
(ii) ∠OAB
(iii) ∠ACB
In the given figure, PQ is a diameter of a circle with centre O and PT is a tangent at P. QT meets the circle at R. If ∠POR = 72°, find ∠PTR.
In the given figure, PA and PB are tangents to a circle with centre O and ΔABC has been inscribed in the circle such that AB = AC. If ∠BAC = 72°, calculate
(i) ∠AOB
(ii) ∠APB.
Show that the tangent lines at the end points of a diameter of a circle are parallel.
