This is an important ques from circles, ml aggarwal, chapter 15, angle properties or circle,
we have been given a circle based question, and we are asked the value of x in this figure, using the properties of circles
ML Aggarwal solution, class10th, understanding ICSE mathematics
∠DAB = ∠BCD
(Angles in the same segment of the circle)
∠DAB = 250 (∠BCD = 250 given)
In ∆DAP,
Ex, ∠CDA = ∠DAP + ∠DPA
xo = ∠DAB + ∠DPA
xo = 25o + 35 o
xo = 60o