Unit 2 Review - Readiness Assessment -Similarity & Dilations

Front

What is a scale factor in dilation?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a figure during dilation. It determines how much larger or smaller the figure will become.

Front

If a figure is dilated by a scale factor greater than 1, what happens to the figure?

Back

The figure becomes larger.

Front

If a figure is dilated by a scale factor less than 1, what happens to the figure?

Back

The figure becomes smaller.

Front

What is the scale factor if the original point (8, 12) is dilated to (2, 3)?

Back

The scale factor is ¼.

Front

What is the relationship between corresponding angles in similar figures?

Back

Corresponding angles in similar figures are equal.

Front

What is the relationship between corresponding sides in similar figures?

Back

Corresponding sides in similar figures are proportional.

Front

What does it mean for a triangle to be a reduction?

Back

A triangle is a reduction if its scale factor is less than 1.

Front

What does it mean for a triangle to be an enlargement?

Back

A triangle is an enlargement if its scale factor is greater than 1.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What is the slope of a vertical line?

Back

The slope of a vertical line is undefined.