Geometry and TrigonometryVery hardSurface area of a box from its volume
Geometry and Trigonometry practice question
A rectangular box has a volume of 480 cubic units, a length of 10 units, and a width of 8 units. What is the total surface area of the box, in square units?
Answer: 376
The height is 480/80 = 6. The surface area is 2(80 + 60 + 48) = 376.
Common wrong answers
- If you answered 188
- 188 counts each face once.
- If you answered 296
- 296 forgets the two 8 by 6 faces.
- If you answered 480
- 480 is the volume.
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