(7th Grade) Unit 5 Transformation Vocabulary Test

Front

What is a rotation in geometry?

Back

A rotation is a transformation that has a center, an angle, and a direction. It moves every point of a figure in a circle around the center, either clockwise or counterclockwise, for a distance specified by the angle.

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional when they always have the same size in relation to each other, meaning they maintain the same ratio.

Front

What defines a similar shape?

Back

A similar shape is defined by having all corresponding angles equal and corresponding lengths in the same ratio.

Front

What is a pre-image in transformations?

Back

A pre-image is the original shape or figure before a transformation occurs.

Front

What does the property of congruence state?

Back

The property of congruence states that congruence is preserved when a two-dimensional figure is transformed, resulting in an image that is identical in shape and size.

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape to create a new shape.

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, the dimensions of a shape to create a similar shape.

Front

What is the difference between congruent and similar shapes?

Back

Congruent shapes are identical in shape and size, while similar shapes have the same shape but may differ in size.

Front

What is the property of orientation?

Back

The property of orientation refers to the arrangement of points in a shape, which can change during transformations like reflections.

Front

What is a reflection in geometry?

Back

A reflection is a transformation that flips a shape over a line, creating a mirror image.