Year 9 Area and Perimeter Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 9 area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheetYear 9 · Mathematics · Area & PerimeterYear 9 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 12 mm and a perpendicular height of 4 mm. Find its area.
Answer: 24 mm2
- A = ½ × base × height = ½ × 12 × 4
- = 24 mm2
2.A rectangle is 22 cm long and 20 cm wide. Find its area.
Answer: 440 cm2
- A = length × width = 22 × 20
- = 440 cm2
3.A rectangle is 4 m long and 16 m wide. Find its area.
Answer: 64 m2
- A = length × width = 4 × 16
- = 64 m2
4.A triangle has a base of 20 m and a perpendicular height of 6 m. Find its area.
Answer: 60 m2
- A = ½ × base × height = ½ × 20 × 6
- = 60 m2
5.A rectangle is 5 m long and 12 m wide. Find its area.
Answer: 60 m2
- A = length × width = 5 × 12
- = 60 m2
6.A rectangle is 15 mm long and 13 mm wide. Find its area.
Answer: 195 mm2
- A = length × width = 15 × 13
- = 195 mm2
7.A triangle has a base of 4 mm and a perpendicular height of 7 mm. Find its area.
Answer: 14 mm2
- A = ½ × base × height = ½ × 4 × 7
- = 14 mm2
8.A rectangle is 10 cm long and 9 cm wide. Find its area.
Answer: 90 cm2
- A = length × width = 10 × 9
- = 90 cm2
9.A rectangle is 7 mm long and 6 mm wide. Find its area.
Answer: 42 mm2
- A = length × width = 7 × 6
- = 42 mm2
10.A triangle has a base of 10 m and a perpendicular height of 13 m. Find its area.
Answer: 65 m2
- A = ½ × base × height = ½ × 10 × 13
- = 65 m2
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