Math, asked by jihamhai, 11 months ago

pz answer me question no. 8 please plz ​

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Answered by rhvd2001
1

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!

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