Quadrilaterals (4-sided shapes)

Topic: Geometry

Quadrilateral Properties
Square All sides equal, all angles 90°
Rectangle Opposite sides equal, all angles 90°
Rhombus All sides equal, opposite angles equal
Parallelogram Opposite sides parallel and equal
Trapezium (US: Trapezoid) One pair of parallel sides

Geometry

Basic Mathematics

 What is Geometry? Basic Geometrical Terms Types of Angles Types of Triangles Quadrilaterals (4-sided shapes) Perimeter and Area Area – Space inside a shape 3D Shapes and Volume Lines and Angles Properties Circle Geometry Pythagoras Theorem Geometrical Constructions (Basics) Coordinate Geometry (Basics) Symmetry and Transformations Summary Table