5th Grade Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 5th Grade area & perimeter worksheet.
5th Grade Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 9 cm long and 10 cm wide. Find its perimeter.
Answer: 38 cm
- P = 2 × (9 + 10)
- = 2 × 19 = 38 cm
2.A rectangle is 4 mm long and 6 mm wide. Find its area.
Answer: 24 mm2
- A = length × width = 4 × 6
- = 24 mm2
3.A rectangle is 6 mm long and 6 mm wide. Find its perimeter.
Answer: 24 mm
- P = 2 × (6 + 6)
- = 2 × 12 = 24 mm
4.A rectangle is 6 mm long and 3 mm wide. Find its perimeter.
Answer: 18 mm
- P = 2 × (6 + 3)
- = 2 × 9 = 18 mm
5.A rectangle is 10 mm long and 10 mm wide. Find its perimeter.
Answer: 40 mm
- P = 2 × (10 + 10)
- = 2 × 20 = 40 mm
6.A rectangle is 12 m long and 4 m wide. Find its area.
Answer: 48 m2
- A = length × width = 12 × 4
- = 48 m2
7.A rectangle is 6 mm long and 11 mm wide. Find its area.
Answer: 66 mm2
- A = length × width = 6 × 11
- = 66 mm2
8.A rectangle is 4 mm long and 4 mm wide. Find its perimeter.
Answer: 16 mm
- P = 2 × (4 + 4)
- = 2 × 8 = 16 mm
9.A rectangle is 9 cm long and 11 cm wide. Find its perimeter.
Answer: 40 cm
- P = 2 × (9 + 11)
- = 2 × 20 = 40 cm
10.A rectangle is 12 mm long and 7 mm wide. Find its area.
Answer: 84 mm2
- A = length × width = 12 × 7
- = 84 mm2
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
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