Year 7 Area and Perimeter Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 7 area & perimeter worksheet.
Year 7 Area and Perimeter Worksheet — Level 1 — Practice Set 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 4 m long and 4 m wide. Find its perimeter.
Answer: 16 m
- P = 2 × (4 + 4)
- = 2 × 8 = 16 m
2.A rectangle is 2 cm long and 11 cm wide. Find its area.
Answer: 22 cm2
- A = length × width = 2 × 11
- = 22 cm2
3.A rectangle is 9 mm long and 6 mm wide. Find its area.
Answer: 54 mm2
- A = length × width = 9 × 6
- = 54 mm2
4.A rectangle is 10 m long and 9 m wide. Find its perimeter.
Answer: 38 m
- P = 2 × (10 + 9)
- = 2 × 19 = 38 m
5.A rectangle is 10 mm long and 11 mm wide. Find its perimeter.
Answer: 42 mm
- P = 2 × (10 + 11)
- = 2 × 21 = 42 mm
6.A rectangle is 2 m long and 4 m wide. Find its area.
Answer: 8 m2
- A = length × width = 2 × 4
- = 8 m2
7.A rectangle is 3 m long and 8 m wide. Find its perimeter.
Answer: 22 m
- P = 2 × (3 + 8)
- = 2 × 11 = 22 m
8.A rectangle is 8 cm long and 3 cm wide. Find its area.
Answer: 24 cm2
- A = length × width = 8 × 3
- = 24 cm2
9.A rectangle is 9 mm long and 11 mm wide. Find its perimeter.
Answer: 40 mm
- P = 2 × (9 + 11)
- = 2 × 20 = 40 mm
10.A rectangle is 4 cm long and 5 cm wide. Find its perimeter.
Answer: 18 cm
- P = 2 × (4 + 5)
- = 2 × 9 = 18 cm
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.