Year 9 Area and Perimeter Worksheet — Level 1 — Practice Set 4 — 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 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 12 m long and 5 m wide. Find its perimeter.
Answer: 34 m
- P = 2 × (12 + 5)
- = 2 × 17 = 34 m
2.A rectangle is 8 m long and 5 m wide. Find its area.
Answer: 40 m2
- A = length × width = 8 × 5
- = 40 m2
3.A rectangle is 11 cm long and 11 cm wide. Find its area.
Answer: 121 cm2
- A = length × width = 11 × 11
- = 121 cm2
4.A rectangle is 10 cm long and 9 cm wide. Find its perimeter.
Answer: 38 cm
- P = 2 × (10 + 9)
- = 2 × 19 = 38 cm
5.A rectangle is 6 m long and 7 m wide. Find its area.
Answer: 42 m2
- A = length × width = 6 × 7
- = 42 m2
6.A rectangle is 6 mm long and 9 mm wide. Find its perimeter.
Answer: 30 mm
- P = 2 × (6 + 9)
- = 2 × 15 = 30 mm
7.A rectangle is 7 cm long and 3 cm wide. Find its area.
Answer: 21 cm2
- A = length × width = 7 × 3
- = 21 cm2
8.A rectangle is 9 cm long and 9 cm wide. Find its area.
Answer: 81 cm2
- A = length × width = 9 × 9
- = 81 cm2
9.A rectangle is 8 mm long and 6 mm wide. Find its perimeter.
Answer: 28 mm
- P = 2 × (8 + 6)
- = 2 × 14 = 28 mm
10.A rectangle is 11 m long and 2 m wide. Find its area.
Answer: 22 m2
- A = length × width = 11 × 2
- = 22 m2
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