Civil Service Exam Reviewer · Measurement and Geometry · hard
An open-top box (no lid) is 25 cm long, 25 cm wide and 12 cm high. What is the area of material used?
- 2450 cm²
- 7500 cm²
- 1200 cm²
- 1825 cm²
Answer
D. 1825 cm²
Solution
Bottom 625 + sides 2(25 + 25)(12) = 1200 → 1825 cm².
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