Similar Triangles

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 criterion for similarity?

Back

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

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Back

It means triangle ABC is similar to triangle DEF.

Front

How do you find the scale factor of similar triangles?

Back

The scale factor is the ratio of the lengths of corresponding sides of the similar triangles.

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Back

Front

What is the SSS criterion for similarity?

Back

If the lengths of the corresponding sides of two triangles are proportional, then the triangles are similar.

Front

What is the SAS criterion for similarity?

Back

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

Back

The sides of triangle ABC are twice the length of the corresponding sides of triangle XYZ.

Front

What is the relationship between the angles of similar triangles?

Back

The corresponding angles of similar triangles are equal.

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