Geometry-Unit1 Test Review: Transformations

Front

What is a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape to create a new shape. Common types include translation, rotation, reflection, and enlargement.

Front

Define translation in geometry.

Back

Translation is a type of transformation that slides a shape from one position to another without turning or flipping it.

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a shape around a fixed point, known as the center of rotation, by a certain angle.

Front

What does CCW stand for in transformations?

Back

CCW stands for 'counterclockwise', indicating the direction of rotation that moves in the opposite direction of the clock hands.

Front

What does CW stand for in transformations?

Back

CW stands for 'clockwise', indicating the direction of rotation that moves in the same direction as the clock hands.

Front

How do you reflect a point over the x-axis?

Back

To reflect a point (x, y) over the x-axis, the new point will be (x, -y).

Front

What is the result of reflecting the point (4, -2) over the x-axis?

Back

The result is (4, 2).

Front

What is the angle of rotation for a 90° CCW rotation?

Back

A 90° CCW rotation turns the shape 90 degrees counterclockwise around the center of rotation.

Front

What is a reflection in geometry?

Back

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

Front

What is the effect of a 180° rotation on a point (x, y)?

Back

A 180° rotation transforms the point (x, y) to (-x, -y).