Area of ABCD = (2x+5)(x+2) = 2x^{2} +9x +10Area of EFGH = (x+3)(x) = x^{2} + 3xTotal Area = 5 = ABCD - EFGH = 2x^{2} +9x +10 - x^{2} - 3x 5 = x^{2} + 6x +10 0 = x^{2} + 6x +5(Follow up question could be to find x, either by factorising above equation or using the quadratic formula)