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Year 5 Area and Perimeter Worksheet — Level 3 — Practice Set 3 — Answers

Answer sheet with worked solutions for the Year 5 area & perimeter worksheet.

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Success TutoringWorksheetsAnswer sheetYear 5 · Mathematics · Area & Perimeter

Year 5 Area and Perimeter Worksheet — Level 3 — Practice Set 3 — Answers

Write the formula, substitute, then calculate. Include units.

1.A rectangle is 9 cm long and 13 cm wide. Find its area.

Answer: 117 cm2

  1. A = length × width = 9 × 13
  2. = 117 cm2
2.A triangle has a base of 14 cm and a perpendicular height of 13 cm. Find its area.

Answer: 91 cm2

  1. A = ½ × base × height = ½ × 14 × 13
  2. = 91 cm2
3.A triangle has a base of 7 mm and a perpendicular height of 13 mm. Find its area.

Answer: 45.5 mm2

  1. A = ½ × base × height = ½ × 7 × 13
  2. = 45.5 mm2
4.A rectangle is 8 mm long and 5 mm wide. Find its area.

Answer: 40 mm2

  1. A = length × width = 8 × 5
  2. = 40 mm2
5.An L-shape is made from a 10 cm by 5 cm rectangle joined to a 3 cm by 9 cm rectangle. Find the total area.

Answer: 77 cm2

  1. Rectangle 1: 10 × 5 = 50
  2. Rectangle 2: 3 × 9 = 27
  3. Total: 50 + 27 = 77 cm2
6.A rectangle is 30 mm long and 4 mm wide. Find its area.

Answer: 120 mm2

  1. A = length × width = 30 × 4
  2. = 120 mm2
7.A rectangle is 9 m long and 17 m wide. Find its area.

Answer: 153 m2

  1. A = length × width = 9 × 17
  2. = 153 m2
8.A rectangle is 16 mm long and 5 mm wide. Find its area.

Answer: 80 mm2

  1. A = length × width = 16 × 5
  2. = 80 mm2
9.An L-shape is made from a 3 mm by 18 mm rectangle joined to a 2 mm by 15 mm rectangle. Find the total area.

Answer: 84 mm2

  1. Rectangle 1: 3 × 18 = 54
  2. Rectangle 2: 2 × 15 = 30
  3. Total: 54 + 30 = 84 mm2
10.An L-shape is made from a 15 m by 6 m rectangle joined to a 11 m by 3 m rectangle. Find the total area.

Answer: 123 m2

  1. Rectangle 1: 15 × 6 = 90
  2. Rectangle 2: 11 × 3 = 33
  3. Total: 90 + 33 = 123 m2
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