Selection C is the correct choice.
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Diagonals of a parallelogram bisect each other, hence have the same midpoint.
The answer is 13,940....
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<span>3.82e + 7 = 17.3838365847. Written in standard form, this makes 1.73838365847 x 10^1.</span>
Both numbers (9.00 and 4.25) have three sig-figs. This means that the final answer will have three sig-figs as well.
Multiply the numbers to get: 9.00*4.25 = 38.25 which rounds to 38.3 because the answer must have three sig-figs.
The units will be "square inches" or "inches^2" or "in^2". There are various ways to write the units portion.
Overall, the final answer is 38.3 square inches.
