Question

Check the picture. It is Q5.

Answer 1

option a) is correct.
Explanation:
Angles made on same arc are equal. Therefore, Angle DAB = Angle DCB = 25°.
In ∆DAP by Angle Sum Property, DAP + APD + ADP = 180°; 25° + 35° + ADP = 180°.
ADP = 180 - 60 = 120°.
ADC + ADP = 180° (Linear Pair Axion)
ADC = 180 - 120 = 60°
CDA = 60°