8th Grade Area and Perimeter Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the 8th Grade area & perimeter worksheet.
8th Grade Area and Perimeter Worksheet — Level 1 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 11 m long and 12 m wide. Find its perimeter.
Answer: 46 m
- P = 2 × (11 + 12)
- = 2 × 23 = 46 m
2.A rectangle is 11 cm long and 12 cm wide. Find its perimeter.
Answer: 46 cm
- P = 2 × (11 + 12)
- = 2 × 23 = 46 cm
3.A rectangle is 4 cm long and 3 cm wide. Find its area.
Answer: 12 cm2
- A = length × width = 4 × 3
- = 12 cm2
4.A rectangle is 3 cm long and 11 cm wide. Find its area.
Answer: 33 cm2
- A = length × width = 3 × 11
- = 33 cm2
5.A rectangle is 4 m long and 6 m wide. Find its area.
Answer: 24 m2
- A = length × width = 4 × 6
- = 24 m2
6.A rectangle is 7 m long and 7 m wide. Find its area.
Answer: 49 m2
- A = length × width = 7 × 7
- = 49 m2
7.A rectangle is 5 cm long and 10 cm wide. Find its perimeter.
Answer: 30 cm
- P = 2 × (5 + 10)
- = 2 × 15 = 30 cm
8.A rectangle is 2 mm long and 4 mm wide. Find its area.
Answer: 8 mm2
- A = length × width = 2 × 4
- = 8 mm2
9.A rectangle is 5 mm long and 9 mm wide. Find its area.
Answer: 45 mm2
- A = length × width = 5 × 9
- = 45 mm2
10.A rectangle is 6 m long and 11 m wide. Find its area.
Answer: 66 m2
- A = length × width = 6 × 11
- = 66 m2
Marking tips
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