Year 9 Area and Perimeter Worksheet — Level 1 — Practice Set 3 — 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 3 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 10 cm long and 5 cm wide. Find its perimeter.
Answer: 30 cm
- P = 2 × (10 + 5)
- = 2 × 15 = 30 cm
2.A rectangle is 11 mm long and 2 mm wide. Find its area.
Answer: 22 mm2
- A = length × width = 11 × 2
- = 22 mm2
3.A rectangle is 7 mm long and 12 mm wide. Find its perimeter.
Answer: 38 mm
- P = 2 × (7 + 12)
- = 2 × 19 = 38 mm
4.A rectangle is 4 m long and 6 m wide. Find its area.
Answer: 24 m2
- A = length × width = 4 × 6
- = 24 m2
5.A rectangle is 2 cm long and 10 cm wide. Find its perimeter.
Answer: 24 cm
- P = 2 × (2 + 10)
- = 2 × 12 = 24 cm
6.A rectangle is 3 m long and 2 m wide. Find its area.
Answer: 6 m2
- A = length × width = 3 × 2
- = 6 m2
7.A rectangle is 3 m long and 4 m wide. Find its perimeter.
Answer: 14 m
- P = 2 × (3 + 4)
- = 2 × 7 = 14 m
8.A rectangle is 9 cm long and 5 cm wide. Find its perimeter.
Answer: 28 cm
- P = 2 × (9 + 5)
- = 2 × 14 = 28 cm
9.A rectangle is 12 m long and 6 m wide. Find its perimeter.
Answer: 36 m
- P = 2 × (12 + 6)
- = 2 × 18 = 36 m
10.A rectangle is 11 m long and 4 m wide. Find its area.
Answer: 44 m2
- A = length × width = 11 × 4
- = 44 m2
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