Is that the whole question? It does not specify, so that means there is a 50/50 chance for either.
I'm pretty sure that it would be 1,000...
Change 212,514 into 215,000.
Change 396,705 into 400,000.
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Estimate:
215,000 + 400,000 = 615,000
Therefore:
212,514 + 396,705 ≈ 615,000
Area Of Triangle:
4/2 = 2
2x6 = 12
12x2 = 24ft^2
Remaining area:
150 - 24 = 126ft^2
Maximum length:
126/6 = 21
x = 21ft