Year 4 Area and Perimeter Worksheet — Level 2 — Practice Set 2 — 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 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A triangle has a base of 20 m and a perpendicular height of 7 m. Find its area.
Answer: 70 m2
- A = ½ × base × height = ½ × 20 × 7
- = 70 m2
2.A rectangle is 30 mm long and 13 mm wide. Find its area.
Answer: 390 mm2
- A = length × width = 30 × 13
- = 390 mm2
3.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
4.A rectangle is 2 m long and 10 m wide. Find its perimeter.
Answer: 24 m
- P = 2 × (2 + 10)
- = 2 × 12 = 24 m
5.A triangle has a base of 8 mm and a perpendicular height of 15 mm. Find its area.
Answer: 60 mm2
- A = ½ × base × height = ½ × 8 × 15
- = 60 mm2
6.A rectangle is 29 cm long and 4 cm wide. Find its perimeter.
Answer: 66 cm
- P = 2 × (29 + 4)
- = 2 × 33 = 66 cm
7.A rectangle is 11 m long and 12 m wide. Find its area.
Answer: 132 m2
- A = length × width = 11 × 12
- = 132 m2
8.A triangle has a base of 8 mm and a perpendicular height of 4 mm. Find its area.
Answer: 16 mm2
- A = ½ × base × height = ½ × 8 × 4
- = 16 mm2
9.A triangle has a base of 15 m and a perpendicular height of 5 m. Find its area.
Answer: 37.5 m2
- A = ½ × base × height = ½ × 15 × 5
- = 37.5 m2
10.A rectangle is 16 cm long and 11 cm wide. Find its area.
Answer: 176 cm2
- A = length × width = 16 × 11
- = 176 cm2
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