Year 5 Area and Perimeter Worksheet — Level 3 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 5 area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheetYear 5 · Mathematics · Area & PerimeterYear 5 Area and Perimeter Worksheet — Level 3 — Practice Set 3 — Answers
Write the formula, substitute, then calculate. Include units.
1.An L-shape is made from a 29 mm by 3 mm rectangle joined to a 7 mm by 5 mm rectangle. Find the total area.
Answer: 122 mm2
- Rectangle 1: 29 × 3 = 87
- Rectangle 2: 7 × 5 = 35
- Total: 87 + 35 = 122 mm2
2.An L-shape is made from a 26 m by 11 m rectangle joined to a 25 m by 15 m rectangle. Find the total area.
Answer: 661 m2
- Rectangle 1: 26 × 11 = 286
- Rectangle 2: 25 × 15 = 375
- Total: 286 + 375 = 661 m2
3.A rectangle is 10 mm long and 18 mm wide. Find its area.
Answer: 180 mm2
- A = length × width = 10 × 18
- = 180 mm2
4.A triangle has a base of 7 mm and a perpendicular height of 10 mm. Find its area.
Answer: 35 mm2
- A = ½ × base × height = ½ × 7 × 10
- = 35 mm2
5.A triangle has a base of 4 m and a perpendicular height of 12 m. Find its area.
Answer: 24 m2
- A = ½ × base × height = ½ × 4 × 12
- = 24 m2
6.A triangle has a base of 14 cm and a perpendicular height of 12 cm. Find its area.
Answer: 84 cm2
- A = ½ × base × height = ½ × 14 × 12
- = 84 cm2
7.A rectangle is 2 m long and 7 m wide. Find its area.
Answer: 14 m2
- A = length × width = 2 × 7
- = 14 m2
8.A triangle has a base of 19 cm and a perpendicular height of 5 cm. Find its area.
Answer: 47.5 cm2
- A = ½ × base × height = ½ × 19 × 5
- = 47.5 cm2
9.A triangle has a base of 9 m and a perpendicular height of 13 m. Find its area.
Answer: 58.5 m2
- A = ½ × base × height = ½ × 9 × 13
- = 58.5 m2
10.An L-shape is made from a 6 m by 7 m rectangle joined to a 4 m by 2 m rectangle. Find the total area.
Answer: 50 m2
- Rectangle 1: 6 × 7 = 42
- Rectangle 2: 4 × 2 = 8
- Total: 42 + 8 = 50 m2
Marking tips
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