A barn is 100 feet long and 40 feet wide. A cross section of the roof is the inverted catenary

A barn is 100 feet long and 40 feet wide. A cross section of the roof is the inverted catenary . Find the number of square feet of roofing on the barn. Round your answer to the nearest integer.
A) 4681 square feet
B) 4701 square feet
C) 2351 square feet
D) 2000 square feet
E) 4000 square feet

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