Year 7 Area and Perimeter Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the Year 7 area & perimeter worksheet.
Year 7 Area and Perimeter Worksheet — Level 1 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 5 mm long and 2 mm wide. Find its area.
Answer: 10 mm2
- A = length × width = 5 × 2
- = 10 mm2
2.A rectangle is 9 cm long and 12 cm wide. Find its area.
Answer: 108 cm2
- A = length × width = 9 × 12
- = 108 cm2
3.A rectangle is 10 cm long and 9 cm wide. Find its area.
Answer: 90 cm2
- A = length × width = 10 × 9
- = 90 cm2
4.A rectangle is 10 mm long and 4 mm wide. Find its area.
Answer: 40 mm2
- A = length × width = 10 × 4
- = 40 mm2
5.A rectangle is 12 cm long and 10 cm wide. Find its perimeter.
Answer: 44 cm
- P = 2 × (12 + 10)
- = 2 × 22 = 44 cm
6.A rectangle is 12 cm long and 3 cm wide. Find its area.
Answer: 36 cm2
- A = length × width = 12 × 3
- = 36 cm2
7.A rectangle is 9 cm long and 4 cm wide. Find its area.
Answer: 36 cm2
- A = length × width = 9 × 4
- = 36 cm2
8.A rectangle is 9 m long and 2 m wide. Find its area.
Answer: 18 m2
- A = length × width = 9 × 2
- = 18 m2
9.A rectangle is 5 cm long and 10 cm wide. Find its area.
Answer: 50 cm2
- A = length × width = 5 × 10
- = 50 cm2
10.A rectangle is 10 mm long and 6 mm wide. Find its area.
Answer: 60 mm2
- A = length × width = 10 × 6
- = 60 mm2
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.