Triangles & Similarities

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

Front

What are the types of triangles based on sides?

Back

Equilateral, Isosceles, and Scalene.

Front

What are the types of triangles based on angles?

Back

Acute, Right, and Obtuse.

Front

What does 'similar triangles' mean?

Back

Triangles that have the same shape but may have different sizes.

Front

What is the AA Similarity Theorem?

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 Theorem?

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 the SSS Similarity Theorem?

Back

If the three sides of one triangle are in proportion to the three sides of another triangle, the triangles are similar.

Front

What is a scale factor in similar triangles?

Back

The ratio of the lengths of corresponding sides of similar triangles.

Front

If triangle A is similar to triangle B, and the scale factor from A to B is 3/2, what does this mean?

Back

Each side of triangle B is 1.5 times the length of the corresponding side of triangle A.

Front

How do you find the missing side of a triangle?

Back

Use the properties of similar triangles or the Pythagorean theorem if applicable.