Question taken from RD sharma
Chapter no. 4
Chapter name:- Triangles
Exercise :- 4.2
This is very basic and important questions.
In this question we have a triangle ΔABC,
In which D and E are points on the sides AB and AC respectively such that DE || BC.
Also it is given that AD/DB = 2/3 and AC = 18 cm,
Now we have to find the length of AE.
Understanding and learning CBSE maths
RD sharma, DHANPAT RAI publication