If three sides of a trapezoid are a = 6 inches long, how long should the fourth side be if the area is a maximum? [Area of a trapezoid = where a and b are the lengths of the parallel sides and h = height.]

Question

If three sides of a trapezoid are a = 6 inches long, how long should the fourth side be if the area is a maximum? [Area of a trapezoid =  where a and b are the lengths of the parallel sides and h = height.]

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The Answer of If three sides of a trapezoid are a = 6 inches long, how long should the fourth side be if the area is a maximum? [Area of a trapezoid =  where a and b are the lengths of the parallel sides and h = height.]

If Three Sides of a Trapezoid Are a = 6