Question

4. In Fig. 9.13, AABC is isosceles with AB = AC. D is the
mid-point of base BC.
Is AADB = AADC? If yes, by which congruence condition?
m) State the three pairs of matching parts that you use to arrive
at your answer.​

Answer 1

Answer:

(a) In triangle ABD and ACD,

AD=AD

AB=AC

BC=CD [D is mid-point at BC]

(b) By using part a of the solution, we get

∴ △ABD≅△ACD ... SSS criterion