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 18 m long and 12 m wide. Find its area.
Answer: 216 m2
- A = length × width = 18 × 12
- = 216 m2
2.A triangle has a base of 6 cm and a perpendicular height of 10 cm. Find its area.
Answer: 30 cm2
- A = ½ × base × height = ½ × 6 × 10
- = 30 cm2
3.A rectangle is 8 cm long and 9 cm wide. Find its area.
Answer: 72 cm2
- A = length × width = 8 × 9
- = 72 cm2
4.A triangle has a base of 10 m and a perpendicular height of 10 m. Find its area.
Answer: 50 m2
- A = ½ × base × height = ½ × 10 × 10
- = 50 m2
5.A triangle has a base of 18 mm and a perpendicular height of 3 mm. Find its area.
Answer: 27 mm2
- A = ½ × base × height = ½ × 18 × 3
- = 27 mm2
6.A rectangle is 12 mm long and 12 mm wide. Find its perimeter.
Answer: 48 mm
- P = 2 × (12 + 12)
- = 2 × 24 = 48 mm
7.A rectangle is 15 m long and 12 m wide. Find its area.
Answer: 180 m2
- A = length × width = 15 × 12
- = 180 m2
8.A rectangle is 13 cm long and 6 cm wide. Find its perimeter.
Answer: 38 cm
- P = 2 × (13 + 6)
- = 2 × 19 = 38 cm
9.A rectangle is 3 cm long and 16 cm wide. Find its perimeter.
Answer: 38 cm
- P = 2 × (3 + 16)
- = 2 × 19 = 38 cm
10.A triangle has a base of 5 mm and a perpendicular height of 14 mm. Find its area.
Answer: 35 mm2
- A = ½ × base × height = ½ × 5 × 14
- = 35 mm2
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