Similar Figures

Front

What are similar figures?

Back

Two figures that have the same shape but may have different sizes.

Front

What are corresponding sides?

Back

Sides of similar figures that are in the same relative position.

Front

If two triangles are similar, what can we say about their angles?

Back

The corresponding angles are equal.

Front

If the ratio of the sides of two similar figures is 2:3, what does this mean?

Back

For every 2 units of one figure, the corresponding side of the other figure is 3 units.

Front

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

Back

The ratio of their areas is the square of the ratio of their corresponding sides.

Front

How do you find a missing side in similar figures?

Back

Set up a proportion using the lengths of the corresponding sides.

Front

What does it mean if two figures are not similar?

Back

Their corresponding angles are not equal or the ratios of their corresponding sides are not equal.

Front

What is the term for angles that are in the same relative position in similar figures?

Back

Corresponding angles.

Front

If triangle ABC is similar to triangle DEF, what can we say about the sides?

Back

The ratios of the lengths of the sides are equal.

Front

What is an example of similar figures in real life?

Back

A small model of a car and the actual car.