Year 10 Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 10 area & perimeter worksheet.
Year 10 Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 3 mm long and 6 mm wide. Find its area.
Answer: 18 mm2
- A = length × width = 3 × 6
- = 18 mm2
2.A rectangle is 11 mm long and 8 mm wide. Find its area.
Answer: 88 mm2
- A = length × width = 11 × 8
- = 88 mm2
3.A rectangle is 3 cm long and 2 cm wide. Find its perimeter.
Answer: 10 cm
- P = 2 × (3 + 2)
- = 2 × 5 = 10 cm
4.A rectangle is 9 cm long and 4 cm wide. Find its area.
Answer: 36 cm2
- A = length × width = 9 × 4
- = 36 cm2
5.A rectangle is 5 m long and 10 m wide. Find its perimeter.
Answer: 30 m
- P = 2 × (5 + 10)
- = 2 × 15 = 30 m
6.A rectangle is 12 m long and 11 m wide. Find its area.
Answer: 132 m2
- A = length × width = 12 × 11
- = 132 m2
7.A rectangle is 11 mm long and 10 mm wide. Find its area.
Answer: 110 mm2
- A = length × width = 11 × 10
- = 110 mm2
8.A rectangle is 8 mm long and 10 mm wide. Find its area.
Answer: 80 mm2
- A = length × width = 8 × 10
- = 80 mm2
9.A rectangle is 11 m long and 6 m wide. Find its area.
Answer: 66 m2
- A = length × width = 11 × 6
- = 66 m2
10.A rectangle is 12 cm long and 10 cm wide. Find its area.
Answer: 120 cm2
- A = length × width = 12 × 10
- = 120 cm2
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.