7th Grade Area and Perimeter Worksheet — Level 2 — Practice Set 3 — 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 3 — Answers
Write the formula, substitute, then calculate. Include units.
1.A triangle has a base of 16 cm and a height of 13 cm. Find its area.
Answer: 104 cm2
- A = ½ × base × height = ½ × 16 × 13
- = 104 cm2
2.A triangle has a base of 11 cm and a height of 14 cm. Find its area.
Answer: 77 cm2
- A = ½ × base × height = ½ × 11 × 14
- = 77 cm2
3.A rectangle is 23 mm long and 16 mm wide. Find its area.
Answer: 368 mm2
- A = length × width = 23 × 16
- = 368 mm2
4.A rectangle is 27 m long and 6 m wide. Find its area.
Answer: 162 m2
- A = length × width = 27 × 6
- = 162 m2
5.A triangle has a base of 16 m and a height of 7 m. Find its area.
Answer: 56 m2
- A = ½ × base × height = ½ × 16 × 7
- = 56 m2
6.A rectangle is 12 mm long and 15 mm wide. Find its perimeter.
Answer: 54 mm
- P = 2 × (12 + 15)
- = 2 × 27 = 54 mm
7.A triangle has a base of 7 cm and a height of 14 cm. Find its area.
Answer: 49 cm2
- A = ½ × base × height = ½ × 7 × 14
- = 49 cm2
8.A triangle has a base of 17 mm and a height of 3 mm. Find its area.
Answer: 25.5 mm2
- A = ½ × base × height = ½ × 17 × 3
- = 25.5 mm2
9.A triangle has a base of 18 m and a height of 6 m. Find its area.
Answer: 54 m2
- A = ½ × base × height = ½ × 18 × 6
- = 54 m2
10.A triangle has a base of 11 m and a height of 9 m. Find its area.
Answer: 49.5 m2
- A = ½ × base × height = ½ × 11 × 9
- = 49.5 m2
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