Geometry Chapter 7 Review

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, 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, 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, the triangles are similar.

Front

What is a midsegment in a triangle?

Back

A midsegment is a line segment that connects the midpoints of two sides of a triangle. It is parallel to the third side and half its length.

Front

How do you determine if two triangles are similar?

Back

To determine if two triangles are similar, check for AA~, SSS~, or SAS criteria.

Front

If triangle FGH has a midsegment QR, and QR = 5.5, what is the length of side FG?

Back

The length of side FG is 11, since the midsegment is half the length of the third side.

Front

What is the scale factor in similar triangles?

Back

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

Front

If the scale factor is 1.5, what does that mean for the sides of the triangles?

Back

It means that each side of the larger triangle is 1.5 times the length of the corresponding side of the smaller triangle.

Front

What is the relationship between the angles of similar triangles?

Back

The corresponding angles of similar triangles are equal.

Front

If two triangles have one angle equal and the sides around that angle in proportion, what can be concluded?

Back

The triangles are similar by the SAS~ criterion.