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ajchat
Answers (1)
Slight mistake in the first answer...The total distance the foci are apart from each other is 2.6457 ft. BUT the distance of the foci from the closest end of the board is 2 - 1.32288 = .67712 ft. Since c^2= a^2 - b^2, and 2a=4, and a=2, therefore a-c is
