Question

please answer the question ​

Answer 1

Answer:

(I) three pairs of equal parts in triangles ABD and ADC are

AB=AC (Given)

angle BAD = angle CAD ( beacuse AD is bisector of angle a that's why angle BAD and CAD are equal)

AD=AD. (Common)

(II) yes ABD congruent to ADC

because

AB=AC (Given)

angle BAD = angle CAD ( beacuse AD is bisector of angle a that's why angle BAD and CAD are equal)

AD=AD. (Common)

so by SAS rule both are congruent

(III) use angle B is equal to angle C

due to CPCT corresponding parts of congruent triangles