16Hit1600
Geometry and TrigonometryMediumSurface area of a box

Geometry and Trigonometry practice question

A closed rectangular box has length 5, width 3 and height 2. What is the total surface area of the box?

Answer: 62

Two faces of each size: 2(15) + 2(10) + 2(6) = 62.

Common wrong answers

If you answered 30
30 is the volume.
If you answered 31
31 counts each face once.
If you answered 50
50 forgets the two smallest faces.

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