Question

Solvs for x.
A.x = 27

B.x = 1

C. x = 25

D. x = 3

Answer 1

Help please!

Answer 2

@hartnn please help

Answer 3

this question belongs to topic similarity of triangles or parallel lines?

Answer 4

I'm not so sure if it's about parallel lines but I'm sure about triangles.

Answer 5

ok, so can u prove DBE and ABC triangles similar?

Answer 6

I can't tell if the sides are proportional.

Answer 7

can't ?
if u prove triangles are similar, then using the fact that sides are proportional, u can get x .....

Answer 8

SO I compare the side AB to side BD

Answer 9

since lines are parallel, corresponding angles are equal
can u prove those 2 triangles using this fact by AA test for similarity ?

Answer 10

What's the AA test? I haven't heard of that.

Answer 11

when two pairs of angles of 2 triangles are equal, then 2 triangles are similar by AA test

Answer 12

so here u have 2 corresponding pairs which are equal because the lines are parallel, which makes the two triangles similar, got this ?

Answer 13

OH! Ok I get it. Thanks for the help but I have to go.

Answer 14

okk...we'll continue, when u return :)