Year 7 Area and Perimeter Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 7 area & perimeter worksheet.
Year 7 Area and Perimeter Worksheet — Level 2 — Practice Set 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 8 m long and 16 m wide. Find its perimeter.
Answer: 48 m
- P = 2 × (8 + 16)
- = 2 × 24 = 48 m
2.A rectangle is 25 mm long and 10 mm wide. Find its perimeter.
Answer: 70 mm
- P = 2 × (25 + 10)
- = 2 × 35 = 70 mm
3.A rectangle is 2 mm long and 16 mm wide. Find its area.
Answer: 32 mm2
- A = length × width = 2 × 16
- = 32 mm2
4.A rectangle is 13 cm long and 17 cm wide. Find its perimeter.
Answer: 60 cm
- P = 2 × (13 + 17)
- = 2 × 30 = 60 cm
5.A rectangle is 12 cm long and 11 cm wide. Find its area.
Answer: 132 cm2
- A = length × width = 12 × 11
- = 132 cm2
6.A rectangle is 16 cm long and 2 cm wide. Find its area.
Answer: 32 cm2
- A = length × width = 16 × 2
- = 32 cm2
7.A triangle has a base of 19 mm and a perpendicular height of 3 mm. Find its area.
Answer: 28.5 mm2
- A = ½ × base × height = ½ × 19 × 3
- = 28.5 mm2
8.A rectangle is 19 m long and 12 m wide. Find its perimeter.
Answer: 62 m
- P = 2 × (19 + 12)
- = 2 × 31 = 62 m
9.A triangle has a base of 18 cm and a perpendicular height of 3 cm. Find its area.
Answer: 27 cm2
- A = ½ × base × height = ½ × 18 × 3
- = 27 cm2
10.A rectangle is 3 cm long and 2 cm wide. Find its perimeter.
Answer: 10 cm
- P = 2 × (3 + 2)
- = 2 × 5 = 10 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.