You need to have JavaScript enabled in order to access this site.

Guided Example #1 - Similar Triangles

Find the value of x in the following pair of triangles.

A.9

B. 10

C. 8

D. Cannot be determinated

Step 1

Correct answer is b.

$Δ A B C$ and

$Δ D E F$ are similar as they are equiangular.
So

$\frac{x}{5} = \frac{8}{4} = 2$