Stretching and Shrinking - Unit Test

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, a quantity. In geometry, it is the ratio of the lengths of corresponding sides of two similar figures.

Front

How do you find the scale factor from one shape to another?

Back

To find the scale factor from shape A to shape B, divide the length of a side of shape B by the length of the corresponding side of shape A.

Front

If the scale factor from shape A to shape B is 1/2, what is the scale factor from shape B to shape A?

Back

The scale factor from shape B to shape A is 2.

Front

What does it mean to translate a figure in geometry?

Back

To translate a figure means to move it from one position to another without changing its size, shape, or orientation.

Front

What is the translation rule for moving a figure right 5 and down 3 units?

Back

The translation rule is (x + 5, y - 3).

Front

What is the relationship between corresponding angles in similar figures?

Back

Corresponding angles in similar figures are equal.

Front

If two shapes are similar, what can you say about their corresponding sides?

Back

The corresponding sides of similar shapes are in proportion.

Front

What is the definition of similar figures?

Back

Similar figures are shapes that have the same shape but may have different sizes. Their corresponding angles are equal, and their corresponding sides are proportional.

Front

How do you determine if two triangles are similar?

Back

Two triangles are similar if their corresponding angles are equal or if the lengths of their corresponding sides are proportional.

Front

What is the formula for finding the area of a triangle?

Back

The area of a triangle is given by the formula: Area = 1/2 * base * height.