Year 6 Area and Perimeter Worksheet — Level 3 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 6 area & perimeter worksheet.
Year 6 Area and Perimeter Worksheet — Level 3 — Practice Set 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.An L-shape is made from a 12 cm by 8 cm rectangle joined to a 3 cm by 10 cm rectangle. Find the total area.
Answer: 126 cm2
- Rectangle 1: 12 × 8 = 96
- Rectangle 2: 3 × 10 = 30
- Total: 96 + 30 = 126 cm2
2.A triangle has a base of 12 m and a perpendicular height of 6 m. Find its area.
Answer: 36 m2
- A = ½ × base × height = ½ × 12 × 6
- = 36 m2
3.A rectangle is 14 cm long and 2 cm wide. Find its area.
Answer: 28 cm2
- A = length × width = 14 × 2
- = 28 cm2
4.An L-shape is made from a 27 m by 5 m rectangle joined to a 22 m by 2 m rectangle. Find the total area.
Answer: 179 m2
- Rectangle 1: 27 × 5 = 135
- Rectangle 2: 22 × 2 = 44
- Total: 135 + 44 = 179 m2
5.A triangle has a base of 14 m and a perpendicular height of 5 m. Find its area.
Answer: 35 m2
- A = ½ × base × height = ½ × 14 × 5
- = 35 m2
6.A rectangle is 26 mm long and 9 mm wide. Find its area.
Answer: 234 mm2
- A = length × width = 26 × 9
- = 234 mm2
7.A triangle has a base of 4 mm and a perpendicular height of 12 mm. Find its area.
Answer: 24 mm2
- A = ½ × base × height = ½ × 4 × 12
- = 24 mm2
8.A triangle has a base of 17 cm and a perpendicular height of 10 cm. Find its area.
Answer: 85 cm2
- A = ½ × base × height = ½ × 17 × 10
- = 85 cm2
9.A rectangle is 20 cm long and 3 cm wide. Find its area.
Answer: 60 cm2
- A = length × width = 20 × 3
- = 60 cm2
10.A triangle has a base of 18 m and a perpendicular height of 11 m. Find its area.
Answer: 99 m2
- A = ½ × base × height = ½ × 18 × 11
- = 99 m2
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.