5th Grade Area and Perimeter Worksheet — Level 3 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 5th Grade area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheet5th Grade · Mathematics · Area & Perimeter5th Grade 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 23 m by 4 m rectangle joined to a 16 m by 3 m rectangle. Find the total area.
Answer: 140 m2
- Rectangle 1: 23 × 4 = 92
- Rectangle 2: 16 × 3 = 48
- Total: 92 + 48 = 140 m2
2.An L-shape is made from a 30 m by 3 m rectangle joined to a 16 m by 6 m rectangle. Find the total area.
Answer: 186 m2
- Rectangle 1: 30 × 3 = 90
- Rectangle 2: 16 × 6 = 96
- Total: 90 + 96 = 186 m2
3.A triangle has a base of 4 m and a height of 12 m. Find its area.
Answer: 24 m2
- A = ½ × base × height = ½ × 4 × 12
- = 24 m2
4.An L-shape is made from a 26 mm by 15 mm rectangle joined to a 15 mm by 3 mm rectangle. Find the total area.
Answer: 435 mm2
- Rectangle 1: 26 × 15 = 390
- Rectangle 2: 15 × 3 = 45
- Total: 390 + 45 = 435 mm2
5.A triangle has a base of 14 mm and a height of 15 mm. Find its area.
Answer: 105 mm2
- A = ½ × base × height = ½ × 14 × 15
- = 105 mm2
6.An L-shape is made from a 24 cm by 20 cm rectangle joined to a 19 cm by 9 cm rectangle. Find the total area.
Answer: 651 cm2
- Rectangle 1: 24 × 20 = 480
- Rectangle 2: 19 × 9 = 171
- Total: 480 + 171 = 651 cm2
7.A rectangle is 16 mm long and 14 mm wide. Find its area.
Answer: 224 mm2
- A = length × width = 16 × 14
- = 224 mm2
8.A rectangle is 21 cm long and 12 cm wide. Find its area.
Answer: 252 cm2
- A = length × width = 21 × 12
- = 252 cm2
9.A rectangle is 19 cm long and 5 cm wide. Find its area.
Answer: 95 cm2
- A = length × width = 19 × 5
- = 95 cm2
10.A triangle has a base of 8 mm and a height of 13 mm. Find its area.
Answer: 52 mm2
- A = ½ × base × height = ½ × 8 × 13
- = 52 mm2
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