8th Grade Area and Perimeter Worksheet — Level 1 — Practice Set 4 — 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 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 5 cm long and 7 cm wide. Find its perimeter.
Answer: 24 cm
- P = 2 × (5 + 7)
- = 2 × 12 = 24 cm
2.A rectangle is 2 cm long and 9 cm wide. Find its area.
Answer: 18 cm2
- A = length × width = 2 × 9
- = 18 cm2
3.A rectangle is 4 m long and 3 m wide. Find its area.
Answer: 12 m2
- A = length × width = 4 × 3
- = 12 m2
4.A rectangle is 11 cm long and 4 cm wide. Find its perimeter.
Answer: 30 cm
- P = 2 × (11 + 4)
- = 2 × 15 = 30 cm
5.A rectangle is 5 mm long and 9 mm wide. Find its area.
Answer: 45 mm2
- A = length × width = 5 × 9
- = 45 mm2
6.A rectangle is 8 m long and 4 m wide. Find its perimeter.
Answer: 24 m
- P = 2 × (8 + 4)
- = 2 × 12 = 24 m
7.A rectangle is 12 mm long and 12 mm wide. Find its perimeter.
Answer: 48 mm
- P = 2 × (12 + 12)
- = 2 × 24 = 48 mm
8.A rectangle is 2 mm long and 10 mm wide. Find its area.
Answer: 20 mm2
- A = length × width = 2 × 10
- = 20 mm2
9.A rectangle is 12 cm long and 12 cm wide. Find its perimeter.
Answer: 48 cm
- P = 2 × (12 + 12)
- = 2 × 24 = 48 cm
10.A rectangle is 3 cm long and 3 cm wide. Find its perimeter.
Answer: 12 cm
- P = 2 × (3 + 3)
- = 2 × 6 = 12 cm
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