# Triangle Proportionality

## Sides divided by a line parallel to the third side of a triangle.

%
Progress

MEMORY METER
This indicates how strong in your memory this concept is
Progress
%
Geometry Similarity

Which Side is Proportional?
Teacher Contributed
$\mathrm{△}ABC$$\triangle{ABC}$ is similar to $\mathrm{△}DEF$$\triangle{DEF}$. Their sides are proportional. What is the correct value for the unknown in the following statement? $\frac{AB}{DE}$$\frac{AB}{DE}$ = $\frac{BC}{EF}$$\frac{BC}{EF}$ = $\frac{?}{DF}$$\frac{?}{DF}$
qid: 100275
Reviews