Geometry & MeasuresKey Facts
The Key Formulas
Part of Area of Parallelograms & Trapeziums — GCSE Mathematics
This key facts covers The Key Formulas within Area of Parallelograms & Trapeziums for GCSE Mathematics. Revise Area of Parallelograms & Trapeziums in Geometry & Measures for GCSE Mathematics with 11 exam-style questions and 4 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 2 of 7 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 7
Practice
11 questions
Recall
4 flashcards
The Key Formulas
| Shape | Formula | Key Point |
|---|---|---|
| Parallelogram | Area = base × perpendicular height | Same as rectangle! (A = b × h) |
| Trapezium | Area = ½ × (a + b) × h | a and b are the parallel sides |
Remember: Height is ALWAYS perpendicular (90°) - never the slanted side!