Year 7 Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 7 area & perimeter worksheet.
Year 7 Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 8 cm long and 4 cm wide. Find its area.
Answer: 32 cm2
- A = length × width = 8 × 4
- = 32 cm2
2.A rectangle is 10 mm long and 3 mm wide. Find its perimeter.
Answer: 26 mm
- P = 2 × (10 + 3)
- = 2 × 13 = 26 mm
3.A rectangle is 7 m long and 9 m wide. Find its perimeter.
Answer: 32 m
- P = 2 × (7 + 9)
- = 2 × 16 = 32 m
4.A rectangle is 12 m long and 6 m wide. Find its perimeter.
Answer: 36 m
- P = 2 × (12 + 6)
- = 2 × 18 = 36 m
5.A rectangle is 9 cm long and 6 cm wide. Find its perimeter.
Answer: 30 cm
- P = 2 × (9 + 6)
- = 2 × 15 = 30 cm
6.A rectangle is 3 mm long and 2 mm wide. Find its area.
Answer: 6 mm2
- A = length × width = 3 × 2
- = 6 mm2
7.A rectangle is 9 m long and 3 m wide. Find its perimeter.
Answer: 24 m
- P = 2 × (9 + 3)
- = 2 × 12 = 24 m
8.A rectangle is 11 m long and 12 m wide. Find its area.
Answer: 132 m2
- A = length × width = 11 × 12
- = 132 m2
9.A rectangle is 7 mm long and 9 mm wide. Find its perimeter.
Answer: 32 mm
- P = 2 × (7 + 9)
- = 2 × 16 = 32 mm
10.A rectangle is 4 m long and 2 m wide. Find its area.
Answer: 8 m2
- A = length × width = 4 × 2
- = 8 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.