Question 15 • Troll - Pre-Algebra - MA3119 A
Rounding each dimension up gives 8.75 feet ≈ 9 feet and 14.8 feet ≈ 15 feet, so the estimated area is 9 × 15 = 135 square feet. The exact area is 8.75 × 14.8 = 129.5 square feet. Since Dion ordered 135 square feet of brick, he ordered enough, and the estimate was correctly made by rounding up. Choice A is correct.
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