MEA011 · 2D measurement · Classes 6–9
Composite area
A composite shape is made of simple shapes. Find its area by splitting it into rectangles, or by taking a cut-out away from a bigger rectangle.
L-shapeComposite area
📐 Formula
A = big rectangle − cut-out (or sum of parts)
✏️ Worked example
10 × 8 rectangle with a 4 × 3 corner removed: 80 − 12 = 68.
🌍 Where it is used
Floor plans, gardens and room carpets.
❓ Quick check
A 6 × 5 rectangle with a 2 × 2 square cut out. Area?
🏋️ Practice
EasyL-shape: 8 × 6 minus 3 × 2. Area?
Answer: 42
MediumTwo rectangles 5 × 2 and 3 × 4 side by side. Area?
Answer: 22
ChallengeA 10 m × 6 m lawn with a 2 m-wide path inside along one long side. Lawn area left?
Answer: 40 m²