Given: line AB is congruent to line AC, Angle BAD is congruent to angle CAD.

Question

Prove: line AD bisects BC

Picture: An upside down triangle divided inhalf to form two triangles Angle BAD and angle CAD. They share a common side of AD. and point D bisects line BC. and Angle c and Angle B are corresponding and congruent.

what i have so far
given info
Line DA is congruent to Line DA by Reflexive Prop or EQuality
angle C is congruent to angle B by the Corresponding parts of congruent triangles are congruen. CPCTC.
but i do not know where to go from that..

Answer 1

As far as I can tell, it doesn't matter which lines are congruent.

<BAD and <CAD are adjacent angles which are equal.
Therefore they bisect <CAB

Gussy it up, but that's the crux of the argument.

Answer 2

how to place information to get answer of geometric mean of 25.4, 9, 16, 4.25, 8.11, 19?

Answer 3

You know it's almost 2017 already.
You'd think that you'd get an actual answer from Tengo anos Cuarenta y uno or at least someone would answer Tengo anos Cuarenta y uno right.