Year 9 Area and Perimeter Worksheet — Level 1 — 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 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 3 m long and 5 m wide. Find its area.
Answer: 15 m2
- A = length × width = 3 × 5
- = 15 m2
2.A rectangle is 5 mm long and 5 mm wide. Find its area.
Answer: 25 mm2
- A = length × width = 5 × 5
- = 25 mm2
3.A rectangle is 10 mm long and 2 mm wide. Find its perimeter.
Answer: 24 mm
- P = 2 × (10 + 2)
- = 2 × 12 = 24 mm
4.A rectangle is 2 mm long and 10 mm wide. Find its perimeter.
Answer: 24 mm
- P = 2 × (2 + 10)
- = 2 × 12 = 24 mm
5.A rectangle is 4 mm long and 12 mm wide. Find its area.
Answer: 48 mm2
- A = length × width = 4 × 12
- = 48 mm2
6.A rectangle is 11 m long and 4 m wide. Find its area.
Answer: 44 m2
- A = length × width = 11 × 4
- = 44 m2
7.A rectangle is 11 cm long and 7 cm wide. Find its area.
Answer: 77 cm2
- A = length × width = 11 × 7
- = 77 cm2
8.A rectangle is 6 m long and 5 m wide. Find its area.
Answer: 30 m2
- A = length × width = 6 × 5
- = 30 m2
9.A rectangle is 6 cm long and 4 cm wide. Find its perimeter.
Answer: 20 cm
- P = 2 × (6 + 4)
- = 2 × 10 = 20 cm
10.A rectangle is 11 mm long and 9 mm wide. Find its perimeter.
Answer: 40 mm
- P = 2 × (11 + 9)
- = 2 × 20 = 40 mm
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