Year 7 Area and Perimeter Worksheet — Level 2 — Practice Set 3 — Answers
Answer sheet with worked solutions for the Year 7 area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Area & PerimeterYear 7 Area and Perimeter Worksheet — Level 2 — Practice Set 3 — Answers
Write the formula, substitute, then calculate. Include units.
1.A triangle has a base of 8 mm and a perpendicular height of 8 mm. Find its area.
Answer: 32 mm2
- A = ½ × base × height = ½ × 8 × 8
- = 32 mm2
2.A rectangle is 19 mm long and 14 mm wide. Find its area.
Answer: 266 mm2
- A = length × width = 19 × 14
- = 266 mm2
3.A rectangle is 17 mm long and 17 mm wide. Find its area.
Answer: 289 mm2
- A = length × width = 17 × 17
- = 289 mm2
4.A rectangle is 22 cm long and 5 cm wide. Find its area.
Answer: 110 cm2
- A = length × width = 22 × 5
- = 110 cm2
5.A rectangle is 3 m long and 17 m wide. Find its perimeter.
Answer: 40 m
- P = 2 × (3 + 17)
- = 2 × 20 = 40 m
6.A rectangle is 26 cm long and 18 cm wide. Find its perimeter.
Answer: 88 cm
- P = 2 × (26 + 18)
- = 2 × 44 = 88 cm
7.A rectangle is 14 mm long and 17 mm wide. Find its perimeter.
Answer: 62 mm
- P = 2 × (14 + 17)
- = 2 × 31 = 62 mm
8.A rectangle is 19 m long and 9 m wide. Find its area.
Answer: 171 m2
- A = length × width = 19 × 9
- = 171 m2
9.A triangle has a base of 12 cm and a perpendicular height of 14 cm. Find its area.
Answer: 84 cm2
- A = ½ × base × height = ½ × 12 × 14
- = 84 cm2
10.A rectangle is 28 m long and 11 m wide. Find its perimeter.
Answer: 78 m
- P = 2 × (28 + 11)
- = 2 × 39 = 78 m
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