In Fig. AB= AC and AD is the bisector of
ZBAC.
State three pairs of equal parts
in triangles ADB and ADC.
(ii)

1 thought on “In Fig. AB= AC and AD is the bisector of<br />ZBAC.<br />State three pairs of equal parts<br />in triangles ADB and ADC.<br />(ii)”

1. Here in \Delta ADB and \Delta ADC.

   i) Three pair of equal parts are:

   AD = AD ( common side )

   BD = CD ( as d is the mid point of BC)

   AB = AC (given in the question)

   ii) Now,

   by SSS Congruency rule,

   \Delta ADB\cong \Delta ADC

   iii) As both triangles are congruent to each other we can compare them and say

   \angle B = \angle C.

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