Question from March SAT: Section 4 #33

In triangle ABC, angle A measures 48 degrees, angle B measures 88 degrees, and angle C measures 44 degrees. Triangle ABC is similar to triangle LMN, such that LM/AB = MN/BC = LN/AC = 3. What is the measure, in degrees, of angle L ?

When triangles are similar, their corresponding angles are congruent. Notationally, when we say triangle *ABC* is similar to triangle *LMN*, we list the corresponding angles in order, so *A* corresponds with *L*, *B* corresponds with *M*, and *C* corresponds with *N*. The question also reassures us of this by telling us which sides correspond–angle *A* will be across from *BC*, and angle *L* will be across from *MN*.

Long story short: because the question tells you that angle *A* measures 48°, and that triangles *ABC* and *LMN* are similar, you know that angle *L* also measures 48°.