7.5 Similar Figures_Mrs. J_1

Front

What are similar figures?

Back

Similar figures are shapes that have the same shape but may differ in size. Their corresponding angles are equal, and the ratios of their corresponding sides are proportional.

Front

What does it mean for two triangles to be similar?

Back

Two triangles are similar if their corresponding angles are equal and the lengths of their corresponding sides are in proportion.

Front

How do you find a missing side in similar figures?

Back

To find a missing side in similar figures, set up a proportion using the lengths of the corresponding sides and solve for the unknown.

Front

What is a proportion?

Back

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

Front

If ΔPAW is similar to ΔPOP, which side corresponds to PW?

Back

PP corresponds to PW.

Front

What is the relationship between corresponding angles in similar figures?

Back

The corresponding angles in similar figures are equal.

Front

How can you determine if two figures are similar?

Back

Two figures are similar if their corresponding angles are equal and the ratios of their corresponding sides are equal.

Front

What is the scale factor in similar figures?

Back

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

Front

If the sides of two similar triangles are in the ratio 2:3, what is the scale factor?

Back

The scale factor is 2:3.

Front

Solve for x: If the sides of two similar triangles are 4 and x, and the ratio is 2:3, what is x?

Back

x = 6.