A
4.
AABC is isosceles with AB = AC. Line segment AD bisects ZA and
meets the base BC in D.
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Answer:
BD=DC
Explanation:
(i) We have AB = AC (Given) ∠BAD = ∠CAD (AD bisects ∠BAC) Therefore by SAS condition of congruence, ΔABD ≅ ΔACD (ii) We have used AB, AC; ∠BAD = ∠CAD; AD, DA. (iii) Now, ΔABD≅ΔACD Therefore by corresponding parts of congruent triangles BD = DC.
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