Geometry - Transformations Review

Front

What is a transformation in geometry?

Back

A transformation in geometry is an operation that moves or changes a shape in some way to produce a new shape.

Front

What are the four main types of transformations?

Back

The four main types of transformations are translation, reflection, rotation, and dilation.

Front

Define translation in geometry.

Back

Translation is a transformation that moves every point of a shape the same distance in the same direction.

Front

What is reflection in geometry?

Back

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

Front

Explain rotation in geometry.

Back

Rotation is a transformation that turns a shape around a fixed point, called the center of rotation, by a certain angle.

Front

What is dilation in geometry?

Back

Dilation is a transformation that changes the size of a shape but keeps its proportions the same.

Front

What is the angle relationship for alternate exterior angles?

Back

Alternate exterior angles are equal when two parallel lines are cut by a transversal.

Front

What is the angle relationship for corresponding angles?

Back

Corresponding angles are equal when two parallel lines are cut by a transversal.

Front

What is the angle relationship for same side interior angles?

Back

Same side interior angles are supplementary when two parallel lines are cut by a transversal.

Front

What does it mean to reflect a shape across the x-axis?

Back

Reflecting a shape across the x-axis means that each point of the shape is flipped over the x-axis, changing the sign of the y-coordinate.