Year 8 Area and Perimeter Worksheet — Level 2 — 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 2 — Practice Set 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 3 mm long and 15 mm wide. Find its area.
Answer: 45 mm2
- A = length × width = 3 × 15
- = 45 mm2
2.A rectangle is 17 mm long and 6 mm wide. Find its area.
Answer: 102 mm2
- A = length × width = 17 × 6
- = 102 mm2
3.A rectangle is 8 mm long and 20 mm wide. Find its area.
Answer: 160 mm2
- A = length × width = 8 × 20
- = 160 mm2
4.A triangle has a base of 13 mm and a perpendicular height of 14 mm. Find its area.
Answer: 91 mm2
- A = ½ × base × height = ½ × 13 × 14
- = 91 mm2
5.A rectangle is 25 mm long and 14 mm wide. Find its perimeter.
Answer: 78 mm
- P = 2 × (25 + 14)
- = 2 × 39 = 78 mm
6.A rectangle is 25 m long and 15 m wide. Find its perimeter.
Answer: 80 m
- P = 2 × (25 + 15)
- = 2 × 40 = 80 m
7.A rectangle is 18 cm long and 11 cm wide. Find its perimeter.
Answer: 58 cm
- P = 2 × (18 + 11)
- = 2 × 29 = 58 cm
8.A rectangle is 21 m long and 6 m wide. Find its perimeter.
Answer: 54 m
- P = 2 × (21 + 6)
- = 2 × 27 = 54 m
9.A rectangle is 26 mm long and 18 mm wide. Find its area.
Answer: 468 mm2
- A = length × width = 26 × 18
- = 468 mm2
10.A rectangle is 8 mm long and 17 mm wide. Find its perimeter.
Answer: 50 mm
- P = 2 × (8 + 17)
- = 2 × 25 = 50 mm
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