Question

From the given fig. find the value of AD if DE∥BC.​

Answer 1

Answer:

AD = 2.6

Step-by-step explanation:

From the Chapter Similarity of Traingles we know

∆ADE ≅ ∆ABC

Therefore AD/DB = AE/EC

Rearranging The terms

AD = (AE/EC)*DB

We know the Values AE = 1.8, DB = 7.2, EC = 5.4.

Substituting the values in the above equation we get

AD = (1.8/5.4)*7.2

AD = (18/54)*7.2

AD = (1/3)*72/10

AD = 26/10

AD = 13/5

AD = 2.6