U6 Review - Similarity

Front

What does it mean for two shapes to be similar?

Back

Two shapes are similar if they have the same shape but not necessarily the same size. This means their corresponding angles are equal and their corresponding sides are in proportion.

Front

What is the similarity statement for triangles?

Back

Front

What is the SAS similarity criterion?

Back

The SAS (Side-Angle-Side) similarity criterion states that if two sides of one triangle are proportional to two sides of another triangle and the included angles are equal, then the triangles are similar.

Front

What is the SSS similarity criterion?

Back

The SSS (Side-Side-Side) similarity criterion states that if the corresponding sides of two triangles are in proportion, then the triangles are similar.

Front

What is the AA similarity criterion?

Back

The AA (Angle-Angle) similarity criterion states that if two angles of one triangle are equal to two angles of another triangle, then the triangles are similar.

Front

Back

Front

If two triangles are similar, how do their areas compare?

Back

The areas of two similar triangles are in the ratio of the square of the lengths of their corresponding sides.

Front

What is the formula for finding the scale factor of similar triangles?

Back

The scale factor is found by dividing the lengths of corresponding sides of the two similar triangles.

Front

If triangle ABC is similar to triangle DEF, and the length of side AB is 4 cm and side DE is 8 cm, what is the scale factor?

Back

Front

What is the relationship between the corresponding sides of similar triangles?

Back

The corresponding sides of similar triangles are proportional.