Geometry Chapter 7 Test Review

Front

What is the criteria for triangle similarity using Side-Angle-Side (SAS)?

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

How do you determine the side length of a triangle using similarity?

Back

Use the ratio of corresponding sides from similar triangles to set up a proportion and solve for the unknown side length.

Front

What does it mean for triangles to be similar?

Back

Triangles are similar if their corresponding angles are equal and their corresponding sides are in proportion.

Front

If a factory produces 6 motorcycles in 9 hours, how do you find the time to produce 16 motorcycles?

Back

Set up a ratio based on the rate of production: (6 motorcycles / 9 hours) = (16 motorcycles / x hours). Solve for x.

Front

What is a scale factor in geometry?

Back

A scale factor is a number that scales, or multiplies, some quantity. It is the ratio of the lengths of two corresponding sides of similar figures.

Front

How do you find the scale factor from a smaller shape to a larger shape?

Back

Divide the length of a side of the larger shape by the length of the corresponding side of the smaller shape.

Front

What is the Side-Side-Side (SSS) similarity criterion?

Back

If the three sides of one triangle are proportional to the three sides of another triangle, then the triangles are similar.

Front

What is the Angle-Angle (AA) similarity criterion?

Back

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

Front

How do you calculate the area of similar triangles?

Back

The area ratio of two similar triangles is equal to the square of the ratio of their corresponding side lengths.

Front

What is the relationship between the angles of similar triangles?

Back

The corresponding angles of similar triangles are equal.