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 triangle has a base of 13 cm and a perpendicular height of 8 cm. Find its area.
Answer: 52 cm2
- A = ½ × base × height = ½ × 13 × 8
- = 52 cm2
2.A rectangle is 28 mm long and 4 mm wide. Find its area.
Answer: 112 mm2
- A = length × width = 28 × 4
- = 112 mm2
3.A triangle has a base of 20 cm and a perpendicular height of 5 cm. Find its area.
Answer: 50 cm2
- A = ½ × base × height = ½ × 20 × 5
- = 50 cm2
4.A triangle has a base of 8 cm and a perpendicular height of 11 cm. Find its area.
Answer: 44 cm2
- A = ½ × base × height = ½ × 8 × 11
- = 44 cm2
5.A rectangle is 18 cm long and 6 cm wide. Find its perimeter.
Answer: 48 cm
- P = 2 × (18 + 6)
- = 2 × 24 = 48 cm
6.A triangle has a base of 13 mm and a perpendicular height of 13 mm. Find its area.
Answer: 84.5 mm2
- A = ½ × base × height = ½ × 13 × 13
- = 84.5 mm2
7.A rectangle is 22 m long and 13 m wide. Find its perimeter.
Answer: 70 m
- P = 2 × (22 + 13)
- = 2 × 35 = 70 m
8.A rectangle is 13 cm long and 9 cm wide. Find its area.
Answer: 117 cm2
- A = length × width = 13 × 9
- = 117 cm2
9.A rectangle is 12 mm long and 8 mm wide. Find its area.
Answer: 96 mm2
- A = length × width = 12 × 8
- = 96 mm2
10.A triangle has a base of 17 cm and a perpendicular height of 4 cm. Find its area.
Answer: 34 cm2
- A = ½ × base × height = ½ × 17 × 4
- = 34 cm2
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