Shaalaa.com | Circles (Arc Properties Part 2)
In cyclic quadrilateral ABCD; AD = BC, ∠BAC = 30° and ∠CBD = 70°; find:
(i) ∠BCD (ii) ∠BCA (iii) ∠ABC (iv) ∠ADC
AB is a diameter of the circle APBR as shown in the figure. APQ and RBQ are straight lines.
Find : (i) ∠PRB, (ii) ∠PBR, (iii) ∠BPR.
In the given figure, ∠BAD = 65°, ∠ABD = 70° and ∠BDC = 45°. Find:
(i) ∠BCD (ii) ∠ACB
Hence, show that AC is a diameter
In the given figure, O is the centre of the circle. ∠OAB and ∠OCB are 30° and 40°
respectively. Find ∠AOC . Show your steps of working.