Answer:
Surface area is the total amount of space that all of the surfaces of an object take up. It is the sum of the area of all the surfaces of that object. Finding the surface area of a three-dimensional shape is moderately easy as long as you know the correct formula.
Explanation:
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the last one: 490mm²
the circles are around 113mm and
the 7mm face is 263mm so I think the last one makes the most sense as
263+113+113= 489 wich is very close
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