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Year 5 Area and Perimeter Worksheet — Level 3 — Practice Set 4 — 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 4 — Answers

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

1.A triangle has a base of 19 mm and a perpendicular height of 6 mm. Find its area.

Answer: 57 mm2

  1. A = ½ × base × height = ½ × 19 × 6
  2. = 57 mm2
2.An L-shape is made from a 28 m by 19 m rectangle joined to a 2 m by 3 m rectangle. Find the total area.

Answer: 538 m2

  1. Rectangle 1: 28 × 19 = 532
  2. Rectangle 2: 2 × 3 = 6
  3. Total: 532 + 6 = 538 m2
3.A rectangle is 25 cm long and 16 cm wide. Find its area.

Answer: 400 cm2

  1. A = length × width = 25 × 16
  2. = 400 cm2
4.An L-shape is made from a 16 mm by 6 mm rectangle joined to a 11 mm by 9 mm rectangle. Find the total area.

Answer: 195 mm2

  1. Rectangle 1: 16 × 6 = 96
  2. Rectangle 2: 11 × 9 = 99
  3. Total: 96 + 99 = 195 mm2
5.An L-shape is made from a 17 m by 8 m rectangle joined to a 8 m by 9 m rectangle. Find the total area.

Answer: 208 m2

  1. Rectangle 1: 17 × 8 = 136
  2. Rectangle 2: 8 × 9 = 72
  3. Total: 136 + 72 = 208 m2
6.A rectangle is 2 mm long and 2 mm wide. Find its area.

Answer: 4 mm2

  1. A = length × width = 2 × 2
  2. = 4 mm2
7.A rectangle is 22 mm long and 16 mm wide. Find its area.

Answer: 352 mm2

  1. A = length × width = 22 × 16
  2. = 352 mm2
8.An L-shape is made from a 12 m by 7 m rectangle joined to a 4 m by 12 m rectangle. Find the total area.

Answer: 132 m2

  1. Rectangle 1: 12 × 7 = 84
  2. Rectangle 2: 4 × 12 = 48
  3. Total: 84 + 48 = 132 m2
9.An L-shape is made from a 25 m by 9 m rectangle joined to a 6 m by 6 m rectangle. Find the total area.

Answer: 261 m2

  1. Rectangle 1: 25 × 9 = 225
  2. Rectangle 2: 6 × 6 = 36
  3. Total: 225 + 36 = 261 m2
10.A rectangle is 8 m long and 2 m wide. Find its area.

Answer: 16 m2

  1. A = length × width = 8 × 2
  2. = 16 m2
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