Year 9 Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 9 area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · Area & PerimeterYear 9 Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 10 mm long and 12 mm wide. Find its perimeter.
Answer: 44 mm
- P = 2 × (10 + 12)
- = 2 × 22 = 44 mm
2.A rectangle is 4 cm long and 7 cm wide. Find its perimeter.
Answer: 22 cm
- P = 2 × (4 + 7)
- = 2 × 11 = 22 cm
3.A rectangle is 10 mm long and 7 mm wide. Find its area.
Answer: 70 mm2
- A = length × width = 10 × 7
- = 70 mm2
4.A rectangle is 12 cm long and 4 cm wide. Find its perimeter.
Answer: 32 cm
- P = 2 × (12 + 4)
- = 2 × 16 = 32 cm
5.A rectangle is 7 mm long and 12 mm wide. Find its area.
Answer: 84 mm2
- A = length × width = 7 × 12
- = 84 mm2
6.A rectangle is 2 m long and 2 m wide. Find its perimeter.
Answer: 8 m
- P = 2 × (2 + 2)
- = 2 × 4 = 8 m
7.A rectangle is 11 mm long and 3 mm wide. Find its area.
Answer: 33 mm2
- A = length × width = 11 × 3
- = 33 mm2
8.A rectangle is 9 m long and 10 m wide. Find its perimeter.
Answer: 38 m
- P = 2 × (9 + 10)
- = 2 × 19 = 38 m
9.A rectangle is 3 m long and 5 m wide. Find its perimeter.
Answer: 16 m
- P = 2 × (3 + 5)
- = 2 × 8 = 16 m
10.A rectangle is 10 mm long and 2 mm wide. Find its perimeter.
Answer: 24 mm
- P = 2 × (10 + 2)
- = 2 × 12 = 24 mm
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