What is the area in square feet of a triangle with a height of 4.5 and base of 6.6
2 answers:
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The denominator in each term of the series is a square number, but neither 
nor 
are squares. So none of (1), (2), and (4) can be correct. The answer must be (3).
It's goofy to subtract perimeter and area; they're in different units. We persist.
The area is and the perimeter is
. so the difference is
Answer: choice A