Section 1
Types of Quadrilaterals
Property
- A quadrilateral is a polygon with four sides.
- A trapezoid is a quadrilateral with one pair of parallel sides.
- A parallelogram is a quadrilateral with both pairs of opposing sides parallel.
- A rhombus is a parallelogram with all sides of the same length.
- A kite is a quadrilateral with two pairs of adjacent sides of the same lengths.
- A rectangle is a parallelogram with at least one right angle.
- A square is a rectangle with all sides of the same length.
Examples
- A garden plot has four sides, with opposite sides parallel and all corners forming right angles. This shape is a rectangle.
- A kite has two short sides of equal length next to each other, and two long sides of equal length next to each other. This follows the definition of a kite.
- A slice of cheese is a quadrilateral with only one pair of parallel sides. This makes it a trapezoid.
Explanation
Think of these shapes like a family tree! A square is a special type of rectangle, which is a special type of parallelogram. Each shape inherits traits from the one above it but adds its own unique rule.