Translation, Reflection, and Rotation

Front

What are rigid motions in geometry?

Back

Rigid motions are movements of the plane where the distance between any two points remains the same.

Front

What is a mirror image of a shape called?

Back

Reflection

Front

Define translation in geometry.

Back

Translation is moving a shape or object without changing its size, shape, or orientation.

Front

What is the difference between a line segment and a ray?

Back

A line segment has two endpoints, while a ray has one endpoint and extends infinitely in one direction.

Front

What are parallel lines?

Back

Lines that do not intersect or meet each other at any point in a plane.

Front

What is reflection in geometry?

Back

Reflection is a transformation that creates a mirror image of a shape over a line.

Front

What does it mean to rotate a shape?

Back

To rotate a shape means to turn it around a fixed point without changing its size or shape.

Front

What is the definition of a transformation in geometry?

Back

A transformation is an operation that moves or changes a shape in some way.

Front

What is the result of translating a shape 5 units to the right?

Back

The shape moves horizontally to the right by 5 units without changing its size or orientation.

Front

What is the effect of a 90-degree rotation on a shape?

Back

A 90-degree rotation turns the shape a quarter turn around a fixed point.