Question

http://tinypic.com/view.php?pic=2gybyfs&s=6

Answer 1

@satellite73 help?

Answer 2

in short,
prove that triangle BDE is SIMILAR to triangle BAC

hint: by A-A test

Answer 3

can u help me more

Answer 4

consider the triangles
BDE and BAC

1) \(\angle DBE=\angle ABC \)
good?

Answer 5

i really dont understand this at all.

Answer 6

that angle is same for the two triangles, correct?

Answer 7

yes.

Answer 8

good. that is exactly what I said,... but in "math language" :)

Answer 9

now, remember the properties of parallel lines intersected by another line called a transversal?