In the figure, M = 82°, then O=?
52°
98°
45°
35°
The sum of opposite angles of a cyclic quadrilateral is 180°.
M + O=180°
O=180°- 82°= 98°
In the given figure, AB || CD. If ∠ABO = 45° and ∠COD = 100°, ∠CDO = ? (a) 25° (b) 30° (c) 35° (d) 45°