7th Grade Area and Perimeter Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 7th Grade area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheet7th Grade · Mathematics · Area & Perimeter7th Grade 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 4 mm and a height of 4 mm. Find its area.
Answer: 8 mm2
- A = ½ × base × height = ½ × 4 × 4
- = 8 mm2
2.A rectangle is 14 mm long and 17 mm wide. Find its perimeter.
Answer: 62 mm
- P = 2 × (14 + 17)
- = 2 × 31 = 62 mm
3.A triangle has a base of 18 m and a height of 10 m. Find its area.
Answer: 90 m2
- A = ½ × base × height = ½ × 18 × 10
- = 90 m2
4.A rectangle is 9 mm long and 13 mm wide. Find its perimeter.
Answer: 44 mm
- P = 2 × (9 + 13)
- = 2 × 22 = 44 mm
5.A rectangle is 20 m long and 17 m wide. Find its perimeter.
Answer: 74 m
- P = 2 × (20 + 17)
- = 2 × 37 = 74 m
6.A rectangle is 5 cm long and 11 cm wide. Find its perimeter.
Answer: 32 cm
- P = 2 × (5 + 11)
- = 2 × 16 = 32 cm
7.A rectangle is 25 mm long and 6 mm wide. Find its perimeter.
Answer: 62 mm
- P = 2 × (25 + 6)
- = 2 × 31 = 62 mm
8.A triangle has a base of 12 mm and a height of 10 mm. Find its area.
Answer: 60 mm2
- A = ½ × base × height = ½ × 12 × 10
- = 60 mm2
9.A rectangle is 28 mm long and 16 mm wide. Find its area.
Answer: 448 mm2
- A = length × width = 28 × 16
- = 448 mm2
10.A rectangle is 7 cm long and 6 cm wide. Find its area.
Answer: 42 cm2
- A = length × width = 7 × 6
- = 42 cm2
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