Question

Using the information given, you have to prove the statement they ask you to.

Answer 1

1. DE || AB - Given
2. DE 1/2 AB - side splitter theorem
3. CD/CA = CE/CB - sst = proportioned sides

Answer 2

As DE // AB so,  its property of a triangle ...., the line parallel to it's base divide the other two sides on proportion..

so,CD/CA = CE/CB