Answer: 46x square meters
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Work Shown:
Area = height*(base1+base2)/2
Area = 5x*(6.4+12)/2
Area = 5x*(18.4)/2
Area = 5x*9.2
Area = 46x
Because we don't know what x is, we cannot evaluate 46x further. So we leave it as is.
The area units are in square meters. We can abbreviate that as m^2 or
Think of a 1 meter by 1 meter square.