Similar Polygons Review

Front

What is the scale factor of similar polygons?

Back

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

Front

If two triangles are similar, what is true about their corresponding sides?

Back

The ratios of the corresponding sides are proportional.

Front

How do you find the scale factor from one triangle to another?

Back

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

Front

What are corresponding angles in similar polygons?

Back

Angles that are in the same position in two different figures.

Front

What is a proportion in mathematics?

Back

A proportion is an equation that states that two ratios are equal.

Front

If the scale factor from ΔDEF to ΔABC is 0.5, what does this mean?

Back

It means that each side of ΔDEF is half the length of the corresponding side of ΔABC.

Front

What is the relationship between the areas of two similar polygons?

Back

The ratio of their areas is the square of the scale factor.

Front

If the scale factor of two similar figures is 2, what can be said about their perimeters?

Back

The ratio of their perimeters is also 2.

Front

What is the scale factor from a smaller figure to a larger figure if the smaller figure's side is 3 and the larger figure's side is 6?

Back

The scale factor is 0.5.

Front

What does it mean if two polygons are similar?

Back

It means they have the same shape but may differ in size.