Year 8 Area and Perimeter Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the Year 8 area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Area & PerimeterYear 8 Area and Perimeter Worksheet — Level 1 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 10 cm long and 8 cm wide. Find its area.
Answer: 80 cm2
- A = length × width = 10 × 8
- = 80 cm2
2.A rectangle is 6 mm long and 4 mm wide. Find its area.
Answer: 24 mm2
- A = length × width = 6 × 4
- = 24 mm2
3.A rectangle is 11 cm long and 11 cm wide. Find its perimeter.
Answer: 44 cm
- P = 2 × (11 + 11)
- = 2 × 22 = 44 cm
4.A rectangle is 6 m long and 8 m wide. Find its area.
Answer: 48 m2
- A = length × width = 6 × 8
- = 48 m2
5.A rectangle is 6 cm long and 12 cm wide. Find its area.
Answer: 72 cm2
- A = length × width = 6 × 12
- = 72 cm2
6.A rectangle is 7 cm long and 3 cm wide. Find its area.
Answer: 21 cm2
- A = length × width = 7 × 3
- = 21 cm2
7.A rectangle is 6 mm long and 5 mm wide. Find its area.
Answer: 30 mm2
- A = length × width = 6 × 5
- = 30 mm2
8.A rectangle is 11 mm long and 6 mm wide. Find its area.
Answer: 66 mm2
- A = length × width = 11 × 6
- = 66 mm2
9.A rectangle is 7 m long and 11 m wide. Find its area.
Answer: 77 m2
- A = length × width = 7 × 11
- = 77 m2
10.A rectangle is 9 m long and 7 m wide. Find its perimeter.
Answer: 32 m
- P = 2 × (9 + 7)
- = 2 × 16 = 32 m
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.