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 4 cm long and 2 cm wide. Find its area.
Answer: 8 cm2
- A = length × width = 4 × 2
- = 8 cm2
2.A rectangle is 5 cm long and 8 cm wide. Find its perimeter.
Answer: 26 cm
- P = 2 × (5 + 8)
- = 2 × 13 = 26 cm
3.A rectangle is 5 mm long and 9 mm wide. Find its area.
Answer: 45 mm2
- A = length × width = 5 × 9
- = 45 mm2
4.A rectangle is 11 mm long and 4 mm wide. Find its area.
Answer: 44 mm2
- A = length × width = 11 × 4
- = 44 mm2
5.A rectangle is 9 mm long and 11 mm wide. Find its area.
Answer: 99 mm2
- A = length × width = 9 × 11
- = 99 mm2
6.A rectangle is 11 mm long and 11 mm wide. Find its perimeter.
Answer: 44 mm
- P = 2 × (11 + 11)
- = 2 × 22 = 44 mm
7.A rectangle is 12 mm long and 2 mm wide. Find its perimeter.
Answer: 28 mm
- P = 2 × (12 + 2)
- = 2 × 14 = 28 mm
8.A rectangle is 3 m long and 12 m wide. Find its perimeter.
Answer: 30 m
- P = 2 × (3 + 12)
- = 2 × 15 = 30 m
9.A rectangle is 3 mm long and 3 mm wide. Find its area.
Answer: 9 mm2
- A = length × width = 3 × 3
- = 9 mm2
10.A rectangle is 10 m long and 2 m wide. Find its perimeter.
Answer: 24 m
- P = 2 × (10 + 2)
- = 2 × 12 = 24 m
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