Year 7 Area and Perimeter Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 7 area & perimeter worksheet.
Year 7 Area and Perimeter Worksheet — Level 1 — Practice Set 3 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 6 cm long and 4 cm wide. Find its area.
Answer: 24 cm2
- A = length × width = 6 × 4
- = 24 cm2
2.A rectangle is 11 m long and 12 m wide. Find its perimeter.
Answer: 46 m
- P = 2 × (11 + 12)
- = 2 × 23 = 46 m
3.A rectangle is 8 mm long and 10 mm wide. Find its perimeter.
Answer: 36 mm
- P = 2 × (8 + 10)
- = 2 × 18 = 36 mm
4.A rectangle is 4 m long and 11 m wide. Find its area.
Answer: 44 m2
- A = length × width = 4 × 11
- = 44 m2
5.A rectangle is 8 mm long and 12 mm wide. Find its area.
Answer: 96 mm2
- A = length × width = 8 × 12
- = 96 mm2
6.A rectangle is 9 mm long and 5 mm wide. Find its area.
Answer: 45 mm2
- A = length × width = 9 × 5
- = 45 mm2
7.A rectangle is 11 mm long and 3 mm wide. Find its perimeter.
Answer: 28 mm
- P = 2 × (11 + 3)
- = 2 × 14 = 28 mm
8.A rectangle is 5 m long and 5 m wide. Find its perimeter.
Answer: 20 m
- P = 2 × (5 + 5)
- = 2 × 10 = 20 m
9.A rectangle is 10 mm long and 5 mm wide. Find its area.
Answer: 50 mm2
- A = length × width = 10 × 5
- = 50 mm2
10.A rectangle is 12 m long and 3 m wide. Find its area.
Answer: 36 m2
- A = length × width = 12 × 3
- = 36 m2
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.