8th Grade Area and Perimeter Worksheet — Level 2 — Practice Set 2 — 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 2 — Practice Set 2 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 16 cm long and 14 cm wide. Find its perimeter.
Answer: 60 cm
- P = 2 × (16 + 14)
- = 2 × 30 = 60 cm
2.A rectangle is 11 m long and 5 m wide. Find its perimeter.
Answer: 32 m
- P = 2 × (11 + 5)
- = 2 × 16 = 32 m
3.A triangle has a base of 8 m and a height of 12 m. Find its area.
Answer: 48 m2
- A = ½ × base × height = ½ × 8 × 12
- = 48 m2
4.A rectangle is 28 cm long and 5 cm wide. Find its perimeter.
Answer: 66 cm
- P = 2 × (28 + 5)
- = 2 × 33 = 66 cm
5.A triangle has a base of 9 mm and a height of 6 mm. Find its area.
Answer: 27 mm2
- A = ½ × base × height = ½ × 9 × 6
- = 27 mm2
6.A rectangle is 2 cm long and 4 cm wide. Find its perimeter.
Answer: 12 cm
- P = 2 × (2 + 4)
- = 2 × 6 = 12 cm
7.A rectangle is 13 m long and 7 m wide. Find its perimeter.
Answer: 40 m
- P = 2 × (13 + 7)
- = 2 × 20 = 40 m
8.A rectangle is 29 cm long and 6 cm wide. Find its area.
Answer: 174 cm2
- A = length × width = 29 × 6
- = 174 cm2
9.A rectangle is 25 mm long and 2 mm wide. Find its area.
Answer: 50 mm2
- A = length × width = 25 × 2
- = 50 mm2
10.A triangle has a base of 6 cm and a height of 9 cm. Find its area.
Answer: 27 cm2
- A = ½ × base × height = ½ × 6 × 9
- = 27 cm2
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