Stretching and Shrinking: Investigation 2 Flashcard

Front

What must similar figures have in common regarding their angles?

Back

Angles that are equal.

Front

What happens to a figure if the scale factor is less than one?

Back

The new figure will be a reduction.

Front

What do the ratios of corresponding sides of similar figures equal?

Back

They all equal the same scale factor.

Front

If a figure is described as (2x, 3y), what can be said about its similarity?

Back

Not similar, because it is 2 times wider and 3 times taller.

Front

Which transformation creates a similar figure: (5x, 3y), (0.5x, 1/2y), (2x, 3y), or (4x, -4y)?

Back

(0.5x, 1/2y) creates a similar figure.

Front

What is the definition of a scale factor?

Back

A scale factor is a number that scales, or multiplies, a quantity.

Front

How do you determine if two figures are similar?

Back

Two figures are similar if their corresponding angles are equal and their corresponding sides are proportional.

Front

What is the effect of a scale factor greater than one on a figure?

Back

The figure will be an enlargement.

Front

What is the relationship between corresponding sides of similar figures?

Back

The ratios of corresponding sides of similar figures are equal.

Front

What does it mean for two figures to be proportional?

Back

It means that the figures maintain the same shape but may differ in size.