Question

in figure 13.31 AB equal to AC and AD is bisector of angle BAC prove that triangle abc is concurrent to triangle ACD also prove that angle B equal to angle C and BD equal to CD​

Answer 1

Explanation:

ab=ac

angle bad=angle cad

ad=ad

there fore adb congruent to adc

by cpct

angle b=angle c

Answer 2

Answer:

In triangle ABD and triangle ADC

AD=AD (common)

angle BAD=angleDAC (given)

AB=AC (given)

triangle ABD is congruent to triangle ADC

angle B=angleC

BD=BC ( by c.p.c.t)