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A triangular parcel of land has sides of lengths 640 feet, 920 feet and 682 feet.

a) What is the area of the parcel of land?
Round your answer to 2 decimal places
Area =  

b) If land is valued at $1900 per acre (1 acre is 43,560 `"feet"^2` ), what is the value of the parcel of land?
Round your answer to 2 decimal places.


value =  

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