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 11 m long and 10 m wide. Find its area.
Answer: 110 m2
- A = length × width = 11 × 10
- = 110 m2
2.A rectangle is 12 mm long and 8 mm wide. Find its area.
Answer: 96 mm2
- A = length × width = 12 × 8
- = 96 mm2
3.A rectangle is 5 cm long and 6 cm wide. Find its area.
Answer: 30 cm2
- A = length × width = 5 × 6
- = 30 cm2
4.A rectangle is 11 cm long and 2 cm wide. Find its perimeter.
Answer: 26 cm
- P = 2 × (11 + 2)
- = 2 × 13 = 26 cm
5.A rectangle is 12 mm long and 10 mm wide. Find its area.
Answer: 120 mm2
- A = length × width = 12 × 10
- = 120 mm2
6.A rectangle is 11 mm long and 12 mm wide. Find its area.
Answer: 132 mm2
- A = length × width = 11 × 12
- = 132 mm2
7.A rectangle is 8 mm long and 6 mm wide. Find its perimeter.
Answer: 28 mm
- P = 2 × (8 + 6)
- = 2 × 14 = 28 mm
8.A rectangle is 5 m long and 5 m wide. Find its area.
Answer: 25 m2
- A = length × width = 5 × 5
- = 25 m2
9.A rectangle is 4 cm long and 2 cm wide. Find its area.
Answer: 8 cm2
- A = length × width = 4 × 2
- = 8 cm2
10.A rectangle is 5 mm long and 10 mm wide. Find its perimeter.
Answer: 30 mm
- P = 2 × (5 + 10)
- = 2 × 15 = 30 mm
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