Thread: please solve this from circle chapter

1) triangle ABC is a right angled at B. on AC, a point D is taken so that AD = DC and AB = BD. find m(< CAB).

BD is the median through the right angle af the triangle. Then . But , then the traingle is equilateral. That means

Originally Posted by red_dog

BD is the median through the right angle af the triangle. Then . But , then the traingle is equilateral. That means

please explain sir, how BD = AD? your answer is correct

D is the center of the circumscribed circle. Then AD, DC, BD are radii, so they are equal.