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Paper 2
Area & Perimeter
Foundation
Always label radius before using πr^2.
Key Facts
- Circle area = πr^2
- Trapezium area = 0.5(a+b)h
- Perimeter is the total boundary.
Topics Covered
Core Area Formulae
What you need to know
- •Triangle, trapezium, circle formulas.
Exam Tips
- Write the formula before substituting values.
Perimeter & Circumference
What you need to know
- •Perimeter is total distance around.
- •Circumference uses 2πr.
Exam Tips
- Keep units consistent.
Key Terms
Perimeter
Total distance around the shape.
Circumference
Perimeter of a circle.
Loading practice drills...
Common Exam Questions
Find the area of a circle with radius 7cm.
2 marksmediumPaper 2
Model Answer
154 cm^2 (to 1 d.p.)
What examiners want to see
- ✓Use πr^2 with r = 7.
Find the perimeter of a rectangle 9 by 4.
1 markeasyPaper 2
Model Answer
26
What examiners want to see
- ✓2(l + w).
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