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 4 m long and 10 m wide. Find its area.
Answer: 40 m2
- A = length × width = 4 × 10
- = 40 m2
2.A rectangle is 2 cm long and 3 cm wide. Find its perimeter.
Answer: 10 cm
- P = 2 × (2 + 3)
- = 2 × 5 = 10 cm
3.A rectangle is 9 cm long and 6 cm wide. Find its perimeter.
Answer: 30 cm
- P = 2 × (9 + 6)
- = 2 × 15 = 30 cm
4.A rectangle is 10 mm long and 6 mm wide. Find its perimeter.
Answer: 32 mm
- P = 2 × (10 + 6)
- = 2 × 16 = 32 mm
5.A rectangle is 12 mm long and 9 mm wide. Find its perimeter.
Answer: 42 mm
- P = 2 × (12 + 9)
- = 2 × 21 = 42 mm
6.A rectangle is 5 mm long and 9 mm wide. Find its perimeter.
Answer: 28 mm
- P = 2 × (5 + 9)
- = 2 × 14 = 28 mm
7.A rectangle is 2 mm long and 5 mm wide. Find its perimeter.
Answer: 14 mm
- P = 2 × (2 + 5)
- = 2 × 7 = 14 mm
8.A rectangle is 2 cm long and 4 cm wide. Find its perimeter.
Answer: 12 cm
- P = 2 × (2 + 4)
- = 2 × 6 = 12 cm
9.A rectangle is 3 mm long and 12 mm wide. Find its area.
Answer: 36 mm2
- A = length × width = 3 × 12
- = 36 mm2
10.A rectangle is 12 mm long and 8 mm wide. Find its perimeter.
Answer: 40 mm
- P = 2 × (12 + 8)
- = 2 × 20 = 40 mm
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