Known: as shown in the figure, in quadrilateral ABCD, angle DAB = 60 degrees, angle B = angle, ADC = 90 degrees, CD = 2, BC = 11, find the length of AC

Known: as shown in the figure, in quadrilateral ABCD, angle DAB = 60 degrees, angle B = angle, ADC = 90 degrees, CD = 2, BC = 11, find the length of AC

When extending BC and ad to e, then ∠ e = 30 °, EC = DC / sine = 4, AE = be * TANE = 5, root number 3
AC = under the root sign (AB ^ 2 + BC ^ 2) = 14
The answer is AC = 14