Year 7 Area and Perimeter Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 7 area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Area & PerimeterYear 7 Area and Perimeter Worksheet — Level 1 — Practice Set 3 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 3 m long and 5 m wide. Find its area.
Answer: 15 m2
- A = length × width = 3 × 5
- = 15 m2
2.A rectangle is 4 mm long and 6 mm wide. Find its perimeter.
Answer: 20 mm
- P = 2 × (4 + 6)
- = 2 × 10 = 20 mm
3.A rectangle is 9 mm long and 12 mm wide. Find its area.
Answer: 108 mm2
- A = length × width = 9 × 12
- = 108 mm2
4.A rectangle is 2 m long and 8 m wide. Find its perimeter.
Answer: 20 m
- P = 2 × (2 + 8)
- = 2 × 10 = 20 m
5.A rectangle is 6 cm long and 5 cm wide. Find its area.
Answer: 30 cm2
- A = length × width = 6 × 5
- = 30 cm2
6.A rectangle is 11 m long and 3 m wide. Find its area.
Answer: 33 m2
- A = length × width = 11 × 3
- = 33 m2
7.A rectangle is 12 mm long and 7 mm wide. Find its perimeter.
Answer: 38 mm
- P = 2 × (12 + 7)
- = 2 × 19 = 38 mm
8.A rectangle is 9 mm long and 7 mm wide. Find its perimeter.
Answer: 32 mm
- P = 2 × (9 + 7)
- = 2 × 16 = 32 mm
9.A rectangle is 2 mm long and 9 mm wide. Find its perimeter.
Answer: 22 mm
- P = 2 × (2 + 9)
- = 2 × 11 = 22 mm
10.A rectangle is 5 mm long and 3 mm wide. Find its perimeter.
Answer: 16 mm
- P = 2 × (5 + 3)
- = 2 × 8 = 16 mm
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.