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In a triangle ABC, angle bisector of ang...

In a triangle ABC, angle bisector of `angleBAC` cut the side BC at D and meet the circumcircle of `DeltaABC` at E. If AC = 4 cm, AD = 5 cm, DE = 3 cm. Find the length of AB.

A

10 cm

B

9.6 cm

C

12 cm

D

9 cm

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