Geometry Review 1

Front

What is a reflection in geometry?

Back

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

Front

What is a rotation in geometry?

Back

A rotation is a transformation that turns a figure around a fixed point at a certain angle.

Front

What is a translation in geometry?

Back

A translation is a transformation that slides a figure from one position to another without changing its shape or orientation.

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the rise over the run between two points on the line.

Front

What is the relationship between the slopes of parallel lines?

Back

The slopes of parallel lines are equal.

Front

What is the relationship between the slopes of perpendicular lines?

Back

The slopes of perpendicular lines are negative reciprocals of each other.

Front

What does it mean for triangles to be similar?

Back

Triangles are similar if they have the same shape but may differ in size, meaning their corresponding angles are equal and their sides are proportional.

Front

What does it mean for triangles to be congruent?

Back

Triangles are congruent if they are identical in shape and size, meaning all corresponding sides and angles are equal.

Front

What is the transformation that preserves the size and shape of a figure?

Back

Rigid transformations, such as reflections, rotations, and translations, preserve the size and shape of a figure.