Area Formulae Visual Support Sheet – Parallelogram, Circle, Triangle & Trapezium

Area Formulae Visual Support Sheet – Parallelogram, Circle, Triangle & Trapezium
A clean, visually-led reference sheet designed to help students understand and recall area formulae across four key shape families. Comes in two versions — diagram only and diagram with formula — making it versatile for both teaching and assessment.

AREA of Shapes covered:

• Parallelogram (rectangle, square, and slanted parallelogram)
• Circle, semicircle, and quarter circle
• Triangle
• Trapezium

Ideal for: KS3 introduction, KS4 revision, low-stakes retrieval starters, display, cover lessons, and SEND support.

Why it works:

• Perfect for retrieval practice — show the diagram, ask students to recall the formula, then reveal.
• Red dashed annotations consistently highlight perpendicular height and radius across all shapes, building the conceptual link between measurement and formula
• Showing the parallelogram as rectangle → square → slant progression helps students see why base × height always works regardless of orientation
• The semicircle and quarter circle variants extend circle knowledge naturally, with fractions of the full formula clearly shown
• Compact enough to print as a revision card or stick-in for exercise books
• **Editable PowerPoint format ** means you can adapt labels, add your school branding, or differentiate for different year groups