Similar Triangles Flashcard 1

Front

What are similar triangles?

Back

Triangles that have the same shape but may differ in size. Their corresponding angles are equal, and their corresponding sides are in proportion.

Front

What is the AA similarity criterion for triangles?

Back

If two angles of one triangle are equal to two angles of another triangle, the triangles are similar.

Front

What is the SAS similarity criterion for triangles?

Back

If two sides of one triangle are in proportion to two sides of another triangle and the included angles are equal, the triangles are similar.

Front

What is a scale factor in the context of similar triangles?

Back

The ratio of the lengths of corresponding sides of two similar figures.

Front

If the scale factor is less than one, what happens to the size of the figure?

Back

The new figure will be smaller.

Front

How do you determine if two triangles are similar using side lengths?

Back

By checking if the ratios of the lengths of corresponding sides are equal.

Front

What is the relationship between the angles of similar triangles?

Back

The corresponding angles of similar triangles are equal.

Front

If triangle ABC is similar to triangle DEF, how can you express this similarity?

Back

Front

What is the effect of a dilation with a scale factor greater than 1?

Back

The figure will be enlarged.

Front

What is the effect of a dilation with a scale factor less than 1?

Back

The figure will be reduced.