pz answer me question no. 8 please plz
Answers
Answer:
Step-by-step explanation: given: ABC and DBC are isosceles triangle
which means AB=AC;BD=DC
also angle BAC=40*;angle BDC=100*
TO PROVE : triangle ADB= triangle ADC
ALSO measure of angle ABD
PROOF: In triangle ABD & triangle ADC
AB=AC {GIVEN}
AD=AD{common}
BD=DC{GIVEN}
THEREFORE,triangle ADB is congruent to triangle ADC
angle BAC+angle ABD=angle BDC
THEREFORE, 100-40 =angle ABD
60=anggle ABD
HENCE PROVED!