Year 4 Area and Perimeter Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 4 area & perimeter worksheet.
Year 4 Area and Perimeter Worksheet — Level 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A triangle has a base of 9 cm and a perpendicular height of 9 cm. Find its area.
Answer: 40.5 cm2
- A = ½ × base × height = ½ × 9 × 9
- = 40.5 cm2
2.A rectangle is 20 m long and 13 m wide. Find its area.
Answer: 260 m2
- A = length × width = 20 × 13
- = 260 m2
3.A rectangle is 10 cm long and 18 cm wide. Find its area.
Answer: 180 cm2
- A = length × width = 10 × 18
- = 180 cm2
4.A rectangle is 23 m long and 8 m wide. Find its perimeter.
Answer: 62 m
- P = 2 × (23 + 8)
- = 2 × 31 = 62 m
5.A rectangle is 14 cm long and 3 cm wide. Find its area.
Answer: 42 cm2
- A = length × width = 14 × 3
- = 42 cm2
6.A rectangle is 28 mm long and 18 mm wide. Find its area.
Answer: 504 mm2
- A = length × width = 28 × 18
- = 504 mm2
7.A rectangle is 6 m long and 17 m wide. Find its perimeter.
Answer: 46 m
- P = 2 × (6 + 17)
- = 2 × 23 = 46 m
8.A rectangle is 11 cm long and 4 cm wide. Find its perimeter.
Answer: 30 cm
- P = 2 × (11 + 4)
- = 2 × 15 = 30 cm
9.A rectangle is 17 cm long and 19 cm wide. Find its perimeter.
Answer: 72 cm
- P = 2 × (17 + 19)
- = 2 × 36 = 72 cm
10.A triangle has a base of 4 cm and a perpendicular height of 4 cm. Find its area.
Answer: 8 cm2
- A = ½ × base × height = ½ × 4 × 4
- = 8 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.