Question

Another hard one.. Question in the picture

Answer 1

I always worked with Thales theorem for questions like this, parallels cutting through a triangles, lol.

Answer 2

oh, what is the Thales theorem?

Answer 3

The first blank should be the top triangle similar to the big triangle.

Answer 4

ABC ~ DBE :)

Answer 5

ok, explain?

Answer 6

Well, we have an angle that's the same for both triangles, right?

Answer 7

yes

Answer 8

BE/BC, that's the ratio on the corresponding side and BD/BA too, true?

Answer 9

yep

Answer 10

Then we have SAS?