4th Grade Area and Perimeter Worksheet — Level 3 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 4th Grade area & perimeter worksheet.
Success TutoringWorksheetsAnswer sheet4th Grade · Mathematics · Area & Perimeter4th Grade Area and Perimeter Worksheet — Level 3 — Practice Set 4 — Answers
Write the formula, substitute, then calculate. Include units.
1.A rectangle is 30 m long and 12 m wide. Find its area.
Answer: 360 m2
- A = length × width = 30 × 12
- = 360 m2
2.A rectangle is 15 m long and 4 m wide. Find its area.
Answer: 60 m2
- A = length × width = 15 × 4
- = 60 m2
3.A triangle has a base of 18 mm and a height of 6 mm. Find its area.
Answer: 54 mm2
- A = ½ × base × height = ½ × 18 × 6
- = 54 mm2
4.A triangle has a base of 19 cm and a height of 10 cm. Find its area.
Answer: 95 cm2
- A = ½ × base × height = ½ × 19 × 10
- = 95 cm2
5.A triangle has a base of 12 mm and a height of 13 mm. Find its area.
Answer: 78 mm2
- A = ½ × base × height = ½ × 12 × 13
- = 78 mm2
6.An L-shape is made from a 26 mm by 17 mm rectangle joined to a 10 mm by 18 mm rectangle. Find the total area.
Answer: 622 mm2
- Rectangle 1: 26 × 17 = 442
- Rectangle 2: 10 × 18 = 180
- Total: 442 + 180 = 622 mm2
7.An L-shape is made from a 24 mm by 5 mm rectangle joined to a 6 mm by 10 mm rectangle. Find the total area.
Answer: 180 mm2
- Rectangle 1: 24 × 5 = 120
- Rectangle 2: 6 × 10 = 60
- Total: 120 + 60 = 180 mm2
8.A triangle has a base of 20 m and a height of 3 m. Find its area.
Answer: 30 m2
- A = ½ × base × height = ½ × 20 × 3
- = 30 m2
9.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
10.A rectangle is 15 m long and 3 m wide. Find its area.
Answer: 45 m2
- A = length × width = 15 × 3
- = 45 m2
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