4th Grade Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 4th Grade area & perimeter worksheet.
4th Grade Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 10 cm long and 6 cm wide. Find its area.
Answer: 60 cm2
- A = length × width = 10 × 6
- = 60 cm2
2.A rectangle is 11 mm long and 12 mm wide. Find its perimeter.
Answer: 46 mm
- P = 2 × (11 + 12)
- = 2 × 23 = 46 mm
3.A rectangle is 10 mm long and 6 mm wide. Find its area.
Answer: 60 mm2
- A = length × width = 10 × 6
- = 60 mm2
4.A rectangle is 6 m long and 8 m wide. Find its perimeter.
Answer: 28 m
- P = 2 × (6 + 8)
- = 2 × 14 = 28 m
5.A rectangle is 9 mm long and 12 mm wide. Find its perimeter.
Answer: 42 mm
- P = 2 × (9 + 12)
- = 2 × 21 = 42 mm
6.A rectangle is 11 cm long and 11 cm wide. Find its area.
Answer: 121 cm2
- A = length × width = 11 × 11
- = 121 cm2
7.A rectangle is 9 mm long and 11 mm wide. Find its perimeter.
Answer: 40 mm
- P = 2 × (9 + 11)
- = 2 × 20 = 40 mm
8.A rectangle is 11 mm long and 6 mm wide. Find its perimeter.
Answer: 34 mm
- P = 2 × (11 + 6)
- = 2 × 17 = 34 mm
9.A rectangle is 4 m long and 2 m wide. Find its area.
Answer: 8 m2
- A = length × width = 4 × 2
- = 8 m2
10.A rectangle is 9 mm long and 2 mm wide. Find its perimeter.
Answer: 22 mm
- P = 2 × (9 + 2)
- = 2 × 11 = 22 mm
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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