Geometry Semester 1 Review

Front

What is a square?

Back

A square is a quadrilateral with all four sides of equal length and all four angles measuring 90 degrees. It is a special type of rectangle.

Front

What is a rectangle?

Back

A rectangle is a quadrilateral with opposite sides that are equal in length and all four angles measuring 90 degrees.

Front

What is a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length.

Front

What is a trapezoid?

Back

A trapezoid is a quadrilateral with at least one pair of parallel sides.

Front

What is the algebraic notation for a reflection over the x-axis?

Back

(x, y) → (x, -y) is the algebraic notation for reflecting a point over the x-axis.

Front

What is the algebraic notation for a reflection over the y-axis?

Back

(x, y) → (-x, y) is the algebraic notation for reflecting a point over the y-axis.

Front

What is a rotation in geometry?

Back

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

Front

What does a 90° clockwise rotation do to a point (x, y)?

Back

A 90° clockwise rotation transforms the point (x, y) to (y, -x).

Front

What does a 180° rotation do to a point (x, y)?

Back

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

Front

What does a 270° clockwise rotation do to a point (x, y)?

Back

A 270° clockwise rotation transforms the point (x, y) to (-y, x).