8th Grade Area and Perimeter Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 8th Grade area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheet8th Grade · Mathematics · Area & Perimeter8th Grade Area and Perimeter Worksheet — Level 1 — Practice Set 3 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 4 mm long and 4 mm wide. Find its perimeter.
Answer: 16 mm
- P = 2 × (4 + 4)
- = 2 × 8 = 16 mm
2.A rectangle is 12 m long and 8 m wide. Find its area.
Answer: 96 m2
- A = length × width = 12 × 8
- = 96 m2
3.A rectangle is 6 mm long and 4 mm wide. Find its area.
Answer: 24 mm2
- A = length × width = 6 × 4
- = 24 mm2
4.A rectangle is 7 cm long and 4 cm wide. Find its perimeter.
Answer: 22 cm
- P = 2 × (7 + 4)
- = 2 × 11 = 22 cm
5.A rectangle is 4 cm long and 10 cm wide. Find its perimeter.
Answer: 28 cm
- P = 2 × (4 + 10)
- = 2 × 14 = 28 cm
6.A rectangle is 9 cm long and 9 cm wide. Find its perimeter.
Answer: 36 cm
- P = 2 × (9 + 9)
- = 2 × 18 = 36 cm
7.A rectangle is 6 m long and 5 m wide. Find its area.
Answer: 30 m2
- A = length × width = 6 × 5
- = 30 m2
8.A rectangle is 7 mm long and 4 mm wide. Find its area.
Answer: 28 mm2
- A = length × width = 7 × 4
- = 28 mm2
9.A rectangle is 7 mm long and 5 mm wide. Find its area.
Answer: 35 mm2
- A = length × width = 7 × 5
- = 35 mm2
10.A rectangle is 7 cm long and 12 cm wide. Find its area.
Answer: 84 cm2
- A = length × width = 7 × 12
- = 84 cm2
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