This key facts covers Key Angle Properties within Properties of Quadrilaterals for GCSE Mathematics. Revise Properties of Quadrilaterals in Geometry & Measures for GCSE Mathematics with 11 exam-style questions and 3 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 3 of 10 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Key Angle Properties
| Property | Applies to |
|---|---|
| All angles = 90° | Square, Rectangle |
| Opposite angles equal | Parallelogram, Rhombus, Rectangle, Square |
| Adjacent angles add to 180° | Parallelogram, Rhombus (co-interior angles) |
| One pair of opposite angles equal | Kite |
Practice questions for Properties of Quadrilaterals
Which of the following is a property of a parallelogram?
State THREE properties of a rhombus, at least one of which relates to its diagonals.
Quick recall flashcards
Rhombus
All sides equal, opposite angles equal
Parallelogram
Opposite sides parallel and equal