Relative Triangles

Jul 2010
1
0
Here is the maths question diagram I made: Tri Tri by ~benjaminpott on deviantART

I have absolutely no idea how to find y let alone prove if they are congruent.

Any help would be amazing!

Ben

I know the lines in the diagram do not look paralell, but they are meant to be.
 
Last edited by a moderator:
Jan 2010
278
138
When you say that the lines are parallel, do you mean this?

SimilarTriangles.jpg

If so, then just use a proportion:
\(\displaystyle \frac{y}{3.7} = \frac{1.7}{6.4}\)
... and solve for y.