5th Grade Area and Perimeter Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 5th Grade area & perimeter worksheet.
5th Grade Area and Perimeter Worksheet — Level 2 — Practice Set 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.A triangle has a base of 4 m and a height of 13 m. Find its area.
Answer: 26 m2
- A = ½ × base × height = ½ × 4 × 13
- = 26 m2
2.A rectangle is 23 mm long and 13 mm wide. Find its perimeter.
Answer: 72 mm
- P = 2 × (23 + 13)
- = 2 × 36 = 72 mm
3.A rectangle is 20 mm long and 4 mm wide. Find its perimeter.
Answer: 48 mm
- P = 2 × (20 + 4)
- = 2 × 24 = 48 mm
4.A rectangle is 10 cm long and 10 cm wide. Find its perimeter.
Answer: 40 cm
- P = 2 × (10 + 10)
- = 2 × 20 = 40 cm
5.A rectangle is 7 cm long and 15 cm wide. Find its area.
Answer: 105 cm2
- A = length × width = 7 × 15
- = 105 cm2
6.A rectangle is 15 cm long and 14 cm wide. Find its perimeter.
Answer: 58 cm
- P = 2 × (15 + 14)
- = 2 × 29 = 58 cm
7.A rectangle is 30 mm long and 9 mm wide. Find its perimeter.
Answer: 78 mm
- P = 2 × (30 + 9)
- = 2 × 39 = 78 mm
8.A triangle has a base of 14 cm and a height of 8 cm. Find its area.
Answer: 56 cm2
- A = ½ × base × height = ½ × 14 × 8
- = 56 cm2
9.A rectangle is 11 m long and 9 m wide. Find its perimeter.
Answer: 40 m
- P = 2 × (11 + 9)
- = 2 × 20 = 40 m
10.A rectangle is 9 cm long and 16 cm wide. Find its area.
Answer: 144 cm2
- A = length × width = 9 × 16
- = 144 cm2
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
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