How do I find the least amount of wrapping paper for a box that is 3 1/2 feet by 1 1/3 feet by 2 1/4 feet?
Note that 3 1/2 = 7/2 1 1/3 = 4/3 2 1/4 = 9/4
The area = 2 ( the sum of the products of all three dimensions taken two at a time ) =
( 7/2 * 4/3 + 4/3 * 9/4 + 7/2* 9/4 ) =
( 28/6 + 36/12 + 63/8) =
(14/3 + 3 + 63/8) =
( 8 * 14 + 3 * 63) / 24 + 3 =
301/24 + 3 =
12 + 13/24 + 3 =
15 + 13/24 ft^2
Note that 3 1/2 = 7/2 1 1/3 = 4/3 2 1/4 = 9/4
The area = 2 ( the sum of the products of all three dimensions taken two at a time ) =
( 7/2 * 4/3 + 4/3 * 9/4 + 7/2* 9/4 ) =
( 28/6 + 36/12 + 63/8) =
(14/3 + 3 + 63/8) =
( 8 * 14 + 3 * 63) / 24 + 3 =
301/24 + 3 =
12 + 13/24 + 3 =
15 + 13/24 ft^2