Similarity

Front

What is the scale factor from one similar figure to another?

Back

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

Front

What is the ratio of any two corresponding sides in similar figures?

Back

Scale Factor

Front

What do we call figures that have corresponding congruent angles and proportional sides?

Back

Similar Figures

Front

Are all angles in similar figures congruent?

Back

True

Front

What does congruent mean?

Back

Same size, same shape

Front

If the scale factor is 2/3, what does that mean for the sizes of the figures?

Back

The second figure is 2/3 the size of the first figure.

Front

What is the relationship between the areas of two similar figures with a scale factor of k?

Back

The ratio of their areas is k².

Front

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

Back

Their corresponding sides are in proportion.

Front

What is a practical example of similar figures in real life?

Back

Maps are an example of similar figures, where the scale represents the ratio of distances.

Front

How do you find the scale factor between two similar triangles?

Back

Divide the length of a side of one triangle by the length of the corresponding side of the other triangle.