Mathematics
In Fig. A, B and C are three points on a circle with centre O such that ∠BOC = 30° and ∠AOB = 60°. If D is a point on the circle other than the arc ABC, find ∠ADC.
Related Questions
In Fig. A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠BEC = 130° and ∠ECD = 20°. Find ∠BAC.
In Fig. ∠ABC = 69°, ∠ACB = 31°, find ∠BDC.
In Fig. ∠PQR = 100°, where P, Q and R are points on a circle with centre O. Find ∠OPR.
A chord of a circle is equal to the radius of the circle. Find the angle subtended by the chord at a point on the minor arc and also at a point on the major arc.