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Year 5 Area and Perimeter Worksheet — Level 3 — Practice Set 2 — 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 2 — Answers

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

1.A rectangle is 16 mm long and 12 mm wide. Find its area.

Answer: 192 mm2

  1. A = length × width = 16 × 12
  2. = 192 mm2
2.An L-shape is made from a 20 cm by 6 cm rectangle joined to a 19 cm by 3 cm rectangle. Find the total area.

Answer: 177 cm2

  1. Rectangle 1: 20 × 6 = 120
  2. Rectangle 2: 19 × 3 = 57
  3. Total: 120 + 57 = 177 cm2
3.An L-shape is made from a 7 m by 15 m rectangle joined to a 3 m by 14 m rectangle. Find the total area.

Answer: 147 m2

  1. Rectangle 1: 7 × 15 = 105
  2. Rectangle 2: 3 × 14 = 42
  3. Total: 105 + 42 = 147 m2
4.A triangle has a base of 12 m and a perpendicular height of 3 m. Find its area.

Answer: 18 m2

  1. A = ½ × base × height = ½ × 12 × 3
  2. = 18 m2
5.An L-shape is made from a 24 cm by 11 cm rectangle joined to a 15 cm by 2 cm rectangle. Find the total area.

Answer: 294 cm2

  1. Rectangle 1: 24 × 11 = 264
  2. Rectangle 2: 15 × 2 = 30
  3. Total: 264 + 30 = 294 cm2
6.A triangle has a base of 9 cm and a perpendicular height of 11 cm. Find its area.

Answer: 49.5 cm2

  1. A = ½ × base × height = ½ × 9 × 11
  2. = 49.5 cm2
7.A triangle has a base of 11 m and a perpendicular height of 3 m. Find its area.

Answer: 16.5 m2

  1. A = ½ × base × height = ½ × 11 × 3
  2. = 16.5 m2
8.A rectangle is 20 mm long and 6 mm wide. Find its area.

Answer: 120 mm2

  1. A = length × width = 20 × 6
  2. = 120 mm2
9.A rectangle is 18 mm long and 17 mm wide. Find its area.

Answer: 306 mm2

  1. A = length × width = 18 × 17
  2. = 306 mm2
10.A rectangle is 25 m long and 11 m wide. Find its area.

Answer: 275 m2

  1. A = length × width = 25 × 11
  2. = 275 m2
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