Year 7 Area and Perimeter Worksheet — Level 2 — Practice Set 4 — 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 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 8 cm long and 4 cm wide. Find its area.
Answer: 32 cm2
- A = length × width = 8 × 4
- = 32 cm2
2.A triangle has a base of 9 mm and a perpendicular height of 15 mm. Find its area.
Answer: 67.5 mm2
- A = ½ × base × height = ½ × 9 × 15
- = 67.5 mm2
3.A triangle has a base of 16 mm and a perpendicular height of 4 mm. Find its area.
Answer: 32 mm2
- A = ½ × base × height = ½ × 16 × 4
- = 32 mm2
4.A rectangle is 11 m long and 13 m wide. Find its area.
Answer: 143 m2
- A = length × width = 11 × 13
- = 143 m2
5.A rectangle is 12 cm long and 16 cm wide. Find its area.
Answer: 192 cm2
- A = length × width = 12 × 16
- = 192 cm2
6.A triangle has a base of 4 cm and a perpendicular height of 10 cm. Find its area.
Answer: 20 cm2
- A = ½ × base × height = ½ × 4 × 10
- = 20 cm2
7.A rectangle is 17 cm long and 16 cm wide. Find its perimeter.
Answer: 66 cm
- P = 2 × (17 + 16)
- = 2 × 33 = 66 cm
8.A rectangle is 5 mm long and 7 mm wide. Find its perimeter.
Answer: 24 mm
- P = 2 × (5 + 7)
- = 2 × 12 = 24 mm
9.A rectangle is 6 cm long and 16 cm wide. Find its perimeter.
Answer: 44 cm
- P = 2 × (6 + 16)
- = 2 × 22 = 44 cm
10.A rectangle is 30 cm long and 9 cm wide. Find its perimeter.
Answer: 78 cm
- P = 2 × (30 + 9)
- = 2 × 39 = 78 cm
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