Year 8 Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 8 area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Area & PerimeterYear 8 Area and Perimeter Worksheet — Level 1 — Practice Set 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 6 mm long and 9 mm wide. Find its perimeter.
Answer: 30 mm
- P = 2 × (6 + 9)
- = 2 × 15 = 30 mm
2.A rectangle is 9 cm long and 4 cm wide. Find its area.
Answer: 36 cm2
- A = length × width = 9 × 4
- = 36 cm2
3.A rectangle is 10 mm long and 5 mm wide. Find its perimeter.
Answer: 30 mm
- P = 2 × (10 + 5)
- = 2 × 15 = 30 mm
4.A rectangle is 3 m long and 5 m wide. Find its perimeter.
Answer: 16 m
- P = 2 × (3 + 5)
- = 2 × 8 = 16 m
5.A rectangle is 11 mm long and 9 mm wide. Find its perimeter.
Answer: 40 mm
- P = 2 × (11 + 9)
- = 2 × 20 = 40 mm
6.A rectangle is 12 mm long and 3 mm wide. Find its area.
Answer: 36 mm2
- A = length × width = 12 × 3
- = 36 mm2
7.A rectangle is 8 cm long and 5 cm wide. Find its area.
Answer: 40 cm2
- A = length × width = 8 × 5
- = 40 cm2
8.A rectangle is 4 cm long and 9 cm wide. Find its area.
Answer: 36 cm2
- A = length × width = 4 × 9
- = 36 cm2
9.A rectangle is 11 mm long and 2 mm wide. Find its perimeter.
Answer: 26 mm
- P = 2 × (11 + 2)
- = 2 × 13 = 26 mm
10.A rectangle is 12 cm long and 12 cm wide. Find its perimeter.
Answer: 48 cm
- P = 2 × (12 + 12)
- = 2 × 24 = 48 cm
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