# 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?

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Feb 9, 2018

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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.

Therefore,

Compare equations (1) & (2),

Given : AB = AC

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