Year 8 Area and Perimeter Worksheet — Level 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 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 2 cm long and 18 cm wide. Find its area.
Answer: 36 cm2
- A = length × width = 2 × 18
- = 36 cm2
2.A rectangle is 13 m long and 8 m wide. Find its perimeter.
Answer: 42 m
- P = 2 × (13 + 8)
- = 2 × 21 = 42 m
3.A rectangle is 29 cm long and 11 cm wide. Find its perimeter.
Answer: 80 cm
- P = 2 × (29 + 11)
- = 2 × 40 = 80 cm
4.A rectangle is 22 m long and 18 m wide. Find its area.
Answer: 396 m2
- A = length × width = 22 × 18
- = 396 m2
5.A rectangle is 12 m long and 12 m wide. Find its area.
Answer: 144 m2
- A = length × width = 12 × 12
- = 144 m2
6.A triangle has a base of 13 cm and a perpendicular height of 9 cm. Find its area.
Answer: 58.5 cm2
- A = ½ × base × height = ½ × 13 × 9
- = 58.5 cm2
7.A rectangle is 2 m long and 3 m wide. Find its perimeter.
Answer: 10 m
- P = 2 × (2 + 3)
- = 2 × 5 = 10 m
8.A triangle has a base of 11 m and a perpendicular height of 13 m. Find its area.
Answer: 71.5 m2
- A = ½ × base × height = ½ × 11 × 13
- = 71.5 m2
9.A triangle has a base of 18 mm and a perpendicular height of 6 mm. Find its area.
Answer: 54 mm2
- A = ½ × base × height = ½ × 18 × 6
- = 54 mm2
10.A triangle has a base of 17 mm and a perpendicular height of 10 mm. Find its area.
Answer: 85 mm2
- A = ½ × base × height = ½ × 17 × 10
- = 85 mm2
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