A water trough for a horse farm is formed by taking a piece of metal and bending the sides as shown in the illustration . (0° < 0<90°) fthe three sides of the trough are to be of equal length.x, find a formula for the area of the cross section of the trough in terms of x and 0. A trough is to be built with sides of length 12 inches, i.e., x=12. Find the angle (to the nearest degree) that the sides must be bent that will produce a cross sectional area of 134 square inches.

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