Angle Angle Similarity 1

Front

What is Angle-Angle (AA) Similarity?

Back

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

Front

What does it mean for two triangles to be similar?

Back

Two triangles are similar if they have the same shape but not necessarily the same size, meaning their corresponding angles are equal and their corresponding sides are in proportion.

Front

What are corresponding angles?

Back

Corresponding angles are angles that are in the same position in different shapes or figures.

Front

What are corresponding sides?

Back

Corresponding sides are sides that are in the same position relative to the angles in similar triangles.

Front

If triangle A is similar to triangle B, what can we say about their angles?

Back

The corresponding angles of triangle A and triangle B are equal.

Front

If triangle A has angles of 30°, 60°, and 90°, what are the angles of a similar triangle?

Back

A similar triangle will also have angles of 30°, 60°, and 90°.

Front

What is the relationship between the side lengths of similar triangles?

Back

The side lengths of similar triangles are proportional to each other.

Front

If triangle A has a side length of 4 cm and triangle B has a corresponding side length of 8 cm, what is the ratio of their side lengths?

Back

The ratio of their side lengths is 1:2.

Front

What is the term for two shapes that are the same shape but not the same size?

Back

Similar.

Front

In triangle A, if angle A = 50° and angle B = 60°, what is angle C?

Back

Angle C = 70° (since the sum of angles in a triangle is 180°).