Unit-4-Review

Front

What is the criteria for triangle similarity using SAS?

Back

Two triangles are similar if two sides of one triangle are proportional to two sides of another triangle and the included angles are equal.

Front

What does SSS stand for in triangle similarity?

Back

SSS stands for Side-Side-Side, which states that if the three sides of one triangle are proportional to the three sides of another triangle, then the triangles are similar.

Front

If two triangles are similar with a scale factor of 3:1, what does this mean?

Back

It means that for every 3 units in one triangle, there are 1 unit in the other triangle, indicating that the first triangle is three times larger than the second.

Front

How do you find the length of a side in similar triangles?

Back

To find the length of a side in similar triangles, use the ratio of the corresponding sides and the known length from one triangle.

Front

If LN = 5 and triangles are similar, what is the length of AC if the scale factor is 2:1?

Back

AC = 10, because you multiply the length of LN by the scale factor.

Front

What is the formula to find the length of a side in a triangle given a scale factor?

Back

Length of side in new triangle = Length of side in original triangle × Scale Factor.

Front

If triangle ABC is similar to triangle DEF, and AB = 6 and DE = 3, what is the scale factor?

Back

The scale factor is 2:1, meaning triangle ABC is twice as large as triangle DEF.

Front

What is the relationship between corresponding angles in similar triangles?

Back

Corresponding angles in similar triangles are equal.

Front

If the sides of triangle XYZ are 12, 16, and 20, what is the scale factor if it is similar to triangle PQR with sides 6, 8, and 10?

Back

The scale factor is 2:1.

Front

How do you determine if two triangles are not similar?

Back

Two triangles are not similar if their corresponding angles are not equal or their sides are not in proportion.