Similar Triangles Snap! A Matching Activity.
In this activity there are 14 triangles and students must match them into pairs that are similar.
Once they have matched them into pairs of similar triangles, they must then use the fact they are similar to work out the missing sides and angles.
As an extension students could cut out the cards and make a poster of them, explaining for each pair how they know they are similar. They could also make their own pair of matching similar triangles.
Tags: Similar, Triangles, Enlargements, Similarity, Similar Triangles, AAA, SAS, SSS
I also have an activity like this for congruent triangles here
Common Core: HSG-SRT.B.5 Use congruence and similarity criteria for triangles to solve problems and to prove relationships in geometric figures.