Euclidean geometry/Parallel lines, quadrilaterals, and circles

Summary of Chapter

To understand the properties of parallel lines, quadlaterals and circles.

Quadrilaterals

A quadlateral is defined as any 4 sided polygon.

Special quadrilaterals

Parallelograms

A parallelogram is a quadrilateral with equal opposite angles and opposite sides with equal length.

Rectangles

A Rectangle is a parallelogram with all right angles.

Squares

A square is a rectangle in which the lengths of all the sides are equal.

Circles

A circle is the set of points in a plane that are a given distance from a given point, the center. The distance between any of the points and the center is called the radius.