Question

Prove that a line parallel to one side of a triangle divides the other two sides proportionally. Be sure to create and name the appropriate geometric figures.

Answer 1

Is their a pic

Answer 2

Nah

Answer 3

Ok

Answer 4

They just want the proof I guess

Answer 5

I think I got it

Answer 6

Ok

Answer 7

First show that angles C and E are congruent because they are corresponding angles
Next show that triangle ADE is similar to triangle ABC because 2 angles are congruent (AA postulate)
Similar triangles have proportional sides