Year 9 Area and Perimeter Worksheet — Level 2 — Practice Set 4 — 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 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 13 cm long and 7 cm wide. Find its area.
Answer: 91 cm2
- A = length × width = 13 × 7
- = 91 cm2
2.A triangle has a base of 17 cm and a perpendicular height of 5 cm. Find its area.
Answer: 42.5 cm2
- A = ½ × base × height = ½ × 17 × 5
- = 42.5 cm2
3.A rectangle is 2 m long and 5 m wide. Find its area.
Answer: 10 m2
- A = length × width = 2 × 5
- = 10 m2
4.A rectangle is 19 cm long and 6 cm wide. Find its area.
Answer: 114 cm2
- A = length × width = 19 × 6
- = 114 cm2
5.A rectangle is 26 mm long and 15 mm wide. Find its area.
Answer: 390 mm2
- A = length × width = 26 × 15
- = 390 mm2
6.A triangle has a base of 4 mm and a perpendicular height of 9 mm. Find its area.
Answer: 18 mm2
- A = ½ × base × height = ½ × 4 × 9
- = 18 mm2
7.A triangle has a base of 17 mm and a perpendicular height of 9 mm. Find its area.
Answer: 76.5 mm2
- A = ½ × base × height = ½ × 17 × 9
- = 76.5 mm2
8.A rectangle is 28 cm long and 3 cm wide. Find its area.
Answer: 84 cm2
- A = length × width = 28 × 3
- = 84 cm2
9.A triangle has a base of 20 mm and a perpendicular height of 6 mm. Find its area.
Answer: 60 mm2
- A = ½ × base × height = ½ × 20 × 6
- = 60 mm2
10.A triangle has a base of 12 m and a perpendicular height of 13 m. Find its area.
Answer: 78 m2
- A = ½ × base × height = ½ × 12 × 13
- = 78 m2
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