Year 6 Area and Perimeter Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 6 area & perimeter worksheet.
Year 6 Area and Perimeter Worksheet — Level 2 — Practice Set 4 — 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 triangle has a base of 10 mm and a perpendicular height of 14 mm. Find its area.
Answer: 70 mm2
- A = ½ × base × height = ½ × 10 × 14
- = 70 mm2
3.A rectangle is 9 m long and 8 m wide. Find its perimeter.
Answer: 34 m
- P = 2 × (9 + 8)
- = 2 × 17 = 34 m
4.A triangle has a base of 13 m and a perpendicular height of 3 m. Find its area.
Answer: 19.5 m2
- A = ½ × base × height = ½ × 13 × 3
- = 19.5 m2
5.A triangle has a base of 15 mm and a perpendicular height of 9 mm. Find its area.
Answer: 67.5 mm2
- A = ½ × base × height = ½ × 15 × 9
- = 67.5 mm2
6.A rectangle is 20 m long and 14 m wide. Find its perimeter.
Answer: 68 m
- P = 2 × (20 + 14)
- = 2 × 34 = 68 m
7.A triangle has a base of 16 mm and a perpendicular height of 11 mm. Find its area.
Answer: 88 mm2
- A = ½ × base × height = ½ × 16 × 11
- = 88 mm2
8.A rectangle is 3 m long and 18 m wide. Find its perimeter.
Answer: 42 m
- P = 2 × (3 + 18)
- = 2 × 21 = 42 m
9.A rectangle is 28 cm long and 7 cm wide. Find its area.
Answer: 196 cm2
- A = length × width = 28 × 7
- = 196 cm2
10.A rectangle is 25 m long and 8 m wide. Find its perimeter.
Answer: 66 m
- P = 2 × (25 + 8)
- = 2 × 33 = 66 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.