Year 6 Area and Perimeter Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 6 area & perimeter worksheet.
Year 6 Area and Perimeter Worksheet — Level 2 — Practice Set 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A triangle has a base of 9 mm and a perpendicular height of 5 mm. Find its area.
Answer: 22.5 mm2
- A = ½ × base × height = ½ × 9 × 5
- = 22.5 mm2
2.A rectangle is 16 mm long and 16 mm wide. Find its perimeter.
Answer: 64 mm
- P = 2 × (16 + 16)
- = 2 × 32 = 64 mm
3.A triangle has a base of 5 m and a perpendicular height of 5 m. Find its area.
Answer: 12.5 m2
- A = ½ × base × height = ½ × 5 × 5
- = 12.5 m2
4.A triangle has a base of 17 mm and a perpendicular height of 9 mm. Find its area.
Answer: 76.5 mm2
- A = ½ × base × height = ½ × 17 × 9
- = 76.5 mm2
5.A triangle has a base of 7 m and a perpendicular height of 15 m. Find its area.
Answer: 52.5 m2
- A = ½ × base × height = ½ × 7 × 15
- = 52.5 m2
6.A triangle has a base of 17 m and a perpendicular height of 8 m. Find its area.
Answer: 68 m2
- A = ½ × base × height = ½ × 17 × 8
- = 68 m2
7.A triangle has a base of 16 cm and a perpendicular height of 7 cm. Find its area.
Answer: 56 cm2
- A = ½ × base × height = ½ × 16 × 7
- = 56 cm2
8.A triangle has a base of 18 cm and a perpendicular height of 10 cm. Find its area.
Answer: 90 cm2
- A = ½ × base × height = ½ × 18 × 10
- = 90 cm2
9.A triangle has a base of 11 m and a perpendicular height of 14 m. Find its area.
Answer: 77 m2
- A = ½ × base × height = ½ × 11 × 14
- = 77 m2
10.A rectangle is 6 mm long and 15 mm wide. Find its perimeter.
Answer: 42 mm
- P = 2 × (6 + 15)
- = 2 × 21 = 42 mm
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.