Year 4 Area and Perimeter Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 4 area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheetYear 4 · Mathematics · Area & PerimeterYear 4 Area and Perimeter Worksheet — Level 2 — Practice Set 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.A triangle has a base of 9 mm and a perpendicular height of 9 mm. Find its area.
Answer: 40.5 mm2
- A = ½ × base × height = ½ × 9 × 9
- = 40.5 mm2
2.A triangle has a base of 18 cm and a perpendicular height of 8 cm. Find its area.
Answer: 72 cm2
- A = ½ × base × height = ½ × 18 × 8
- = 72 cm2
3.A rectangle is 28 cm long and 16 cm wide. Find its perimeter.
Answer: 88 cm
- P = 2 × (28 + 16)
- = 2 × 44 = 88 cm
4.A triangle has a base of 9 mm and a perpendicular height of 8 mm. Find its area.
Answer: 36 mm2
- A = ½ × base × height = ½ × 9 × 8
- = 36 mm2
5.A rectangle is 29 mm long and 13 mm wide. Find its area.
Answer: 377 mm2
- A = length × width = 29 × 13
- = 377 mm2
6.A rectangle is 26 mm long and 18 mm wide. Find its area.
Answer: 468 mm2
- A = length × width = 26 × 18
- = 468 mm2
7.A rectangle is 20 cm long and 10 cm wide. Find its perimeter.
Answer: 60 cm
- P = 2 × (20 + 10)
- = 2 × 30 = 60 cm
8.A rectangle is 14 cm long and 8 cm wide. Find its area.
Answer: 112 cm2
- A = length × width = 14 × 8
- = 112 cm2
9.A triangle has a base of 5 mm and a perpendicular height of 9 mm. Find its area.
Answer: 22.5 mm2
- A = ½ × base × height = ½ × 5 × 9
- = 22.5 mm2
10.A rectangle is 12 m long and 18 m wide. Find its area.
Answer: 216 m2
- A = length × width = 12 × 18
- = 216 m2
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