Warm up M. 11/18 similar polygons

Front

What can be said about the angles of two similar figures?

Back

The angles of two similar figures are congruent.

Front

If line CB corresponds to line GF, what does this imply about the figures?

Back

It implies that the figures are similar and that the corresponding sides are proportional.

Front

What is the similarity statement for two triangles?

Back

The similarity statement for the triangle pair is written as ΔYZX~ΔNWE.

Front

When two figures are similar, what can be said about their corresponding sides?

Back

Their corresponding sides are proportional.

Front

How do you determine the scale factor between two similar figures?

Back

The scale factor is determined by the ratio of the lengths of corresponding sides.

Front

What is the scale factor from triangle ABCD to triangle MNOP if the sides of ABCD are 2/3 the length of the sides of MNOP?

Back

The scale factor from ABCD to MNOP is 2/3.

Front

What is the definition of similar polygons?

Back

Similar polygons are polygons that have the same shape but may differ in size; their corresponding angles are equal and their corresponding sides are proportional.

Front

What is the relationship between the perimeters of two similar figures?

Back

The ratio of the perimeters of two similar figures is equal to the ratio of their corresponding sides.

Front

If two triangles are similar, how do their areas compare?

Back

The ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding sides.

Front

What is a scale factor in the context of similar figures?

Back

A scale factor is a number that scales, or multiplies, some quantity; in similar figures, it is the ratio of any two corresponding lengths.