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.A rectangle is 22 cm long and 7 cm wide. Find its area.
Answer: 154 cm2
- A = length × width = 22 × 7
- = 154 cm2
2.A triangle has a base of 10 cm and a perpendicular height of 4 cm. Find its area.
Answer: 20 cm2
- A = ½ × base × height = ½ × 10 × 4
- = 20 cm2
3.An L-shape is made from a 26 m by 7 m rectangle joined to a 8 m by 12 m rectangle. Find the total area.
Answer: 278 m2
- Rectangle 1: 26 × 7 = 182
- Rectangle 2: 8 × 12 = 96
- Total: 182 + 96 = 278 m2
4.A triangle has a base of 17 cm and a perpendicular height of 11 cm. Find its area.
Answer: 93.5 cm2
- A = ½ × base × height = ½ × 17 × 11
- = 93.5 cm2
5.A rectangle is 9 cm long and 4 cm wide. Find its area.
Answer: 36 cm2
- A = length × width = 9 × 4
- = 36 cm2
6.A rectangle is 8 cm long and 13 cm wide. Find its area.
Answer: 104 cm2
- A = length × width = 8 × 13
- = 104 cm2
7.An L-shape is made from a 3 mm by 4 mm rectangle joined to a 2 mm by 2 mm rectangle. Find the total area.
Answer: 16 mm2
- Rectangle 1: 3 × 4 = 12
- Rectangle 2: 2 × 2 = 4
- Total: 12 + 4 = 16 mm2
8.A rectangle is 10 mm long and 6 mm wide. Find its area.
Answer: 60 mm2
- A = length × width = 10 × 6
- = 60 mm2
9.A triangle has a base of 15 cm and a perpendicular height of 13 cm. Find its area.
Answer: 97.5 cm2
- A = ½ × base × height = ½ × 15 × 13
- = 97.5 cm2
10.An L-shape is made from a 19 m by 20 m rectangle joined to a 6 m by 17 m rectangle. Find the total area.
Answer: 482 m2
- Rectangle 1: 19 × 20 = 380
- Rectangle 2: 6 × 17 = 102
- Total: 380 + 102 = 482 m2
Marking tips
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