Year 8 Area and Perimeter Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 8 area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Area & PerimeterYear 8 Area and Perimeter Worksheet — Level 1 — Practice Set 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 3 cm long and 3 cm wide. Find its perimeter.
Answer: 12 cm
- P = 2 × (3 + 3)
- = 2 × 6 = 12 cm
2.A rectangle is 2 mm long and 4 mm wide. Find its area.
Answer: 8 mm2
- A = length × width = 2 × 4
- = 8 mm2
3.A rectangle is 12 cm long and 3 cm wide. Find its perimeter.
Answer: 30 cm
- P = 2 × (12 + 3)
- = 2 × 15 = 30 cm
4.A rectangle is 3 mm long and 5 mm wide. Find its perimeter.
Answer: 16 mm
- P = 2 × (3 + 5)
- = 2 × 8 = 16 mm
5.A rectangle is 6 mm long and 4 mm wide. Find its area.
Answer: 24 mm2
- A = length × width = 6 × 4
- = 24 mm2
6.A rectangle is 3 mm long and 12 mm wide. Find its perimeter.
Answer: 30 mm
- P = 2 × (3 + 12)
- = 2 × 15 = 30 mm
7.A rectangle is 12 mm long and 6 mm wide. Find its perimeter.
Answer: 36 mm
- P = 2 × (12 + 6)
- = 2 × 18 = 36 mm
8.A rectangle is 10 mm long and 12 mm wide. Find its area.
Answer: 120 mm2
- A = length × width = 10 × 12
- = 120 mm2
9.A rectangle is 6 m long and 10 m wide. Find its area.
Answer: 60 m2
- A = length × width = 6 × 10
- = 60 m2
10.A rectangle is 7 mm long and 2 mm wide. Find its area.
Answer: 14 mm2
- A = length × width = 7 × 2
- = 14 mm2
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