Question

In figure ,DE||BC,AE=3cm ,CE=6cm ,AD=4cm then find the length of AB

Answer 1

In triangle ABC,

AD/DB =AE/ EC

4/ DB = 3/6

4/ DB = 1/2

DB = 4×2

DB =8

Now,

AB =AD +DB. _______( A - D - B)

AB = 4 +8

AB = 12 units

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