Question 4 • Grade 7 Mathematics
The fabric must cover the rectangular prism’s total surface area. Its three different face areas are 6 × 5 = 30, 6 × 4 = 24, and 5 × 4 = 20 square inches; each face area occurs twice. So the total is 2 × (30 + 24 + 20) = 148 square inches, which is choice B.
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