Geometry Unit 3 In-Class Review

Front

What type of transformation maps a preimage to an image when reflected over the line x=1?

Back

Reflection on line x=1.

Front

What types of symmetry does an equilateral triangle have?

Back

Both line and rotational symmetry.

Front

What type of symmetry does an isosceles triangle have?

Back

One line of symmetry.

Front

Define reflection in geometry.

Back

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

Front

What is rotational symmetry?

Back

A figure has rotational symmetry if it can be rotated around a center point and still look the same at certain angles.

Front

What is a line of symmetry?

Back

A line that divides a figure into two mirror-image halves.

Front

How many lines of symmetry does a square have?

Back

A square has 4 lines of symmetry.

Front

What is the difference between a translation and a reflection?

Back

A translation slides a figure to a new position without changing its shape or orientation, while a reflection flips it over a line.

Front

What is the angle of rotation for a 90-degree counterclockwise rotation?

Back

A 90-degree counterclockwise rotation turns a figure 90 degrees to the left around a point.

Front

What is the definition of a transformation in geometry?

Back

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