RETEST Unit 4B Triangle Similarity

Front

What is Triangle Similarity?

Back

Triangle similarity refers to the property of triangles that have the same shape but may differ in size. This means their corresponding angles are equal and their corresponding sides are in proportion.

Front

What does AA ~ stand for in triangle similarity?

Back

AA ~ stands for 'Angle-Angle Similarity', which states that if two angles of one triangle are equal to two angles of another triangle, then the triangles are similar.

Front

What does SAS ~ stand for in triangle similarity?

Back

SAS ~ stands for 'Side-Angle-Side Similarity', which states that if two sides of one triangle are in proportion to two sides of another triangle and the included angles are equal, then the triangles are similar.

Front

What does SSS ~ stand for in triangle similarity?

Back

SSS ~ stands for 'Side-Side-Side Similarity', which states that if the corresponding sides of two triangles are in proportion, then the triangles are similar.

Front

How do you find the missing side of a triangle using proportions?

Back

To find the missing side, set up a proportion using the lengths of the corresponding sides of the similar triangles and solve for the unknown.

Front

What is a scale factor in triangle similarity?

Back

The scale factor is the ratio of the lengths of corresponding sides of two similar triangles. It indicates how much one triangle has been enlarged or reduced compared to the other.

Front

If ΔKJL is similar to ΔRSQ and the scale factor is 3/2, what does this mean?

Back

This means that each side of ΔKJL is 1.5 times longer than the corresponding side of ΔRSQ.

Front

What is the relationship between corresponding angles in similar triangles?

Back

In similar triangles, corresponding angles are equal.

Front

What is the relationship between corresponding sides in similar triangles?

Back

In similar triangles, the lengths of corresponding sides are in proportion.

Front

How can you determine if two triangles are similar?

Back

You can determine if two triangles are similar by using AA, SAS, or SSS similarity criteria.