In Δ ABC, DE ‖ BC, where D and E are points on the sides AB and AB and AC, respectively. If AD = 2 cm, BD = 5.2 cm, AC = 9 cm and AE = x cm, then what is the value of x?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 2.5.
AD/DB = AE/EC
2/5.2 = x/(9-x)
18 - 2x = 5.2x
x = 18/7.2 = 2.5