In isosceles triangle ABC, AB=AC; a circle drawn taking AB as diameter meets the side BC at the point D. IF BD=4cm,let us find the value of CD?
Given AB = AC, BD = 4 cm. Also AB is the diameter of the circle with D on the circumference.
Construction : Join AD
In triangle ABD,
Now let us consider triangle ACD.
Compare equations (1) & (2),
Given : AB = AC