in the given, triangle ABC and triangle DBC are both isosceles with a common base BC. the equal sides have been shown with similar markings if angle A = 60 and angle D= 40. find angle ABC and angle ACB , b). angle DBC and angle DCB. C). Angle ABD and angle ACD. Are these equal?
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Yes.
In ΔABC and ΔDBCAB=DB (Given)AC=DC (Given)BC=BC (Common)By SSS criterion of congruency, ΔABC≅ΔDBC
No, ∠ABD and∠ACD are not equal
because AB ≠ AC.
Step-by-step explanation:
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