Question 1109301
The total of all angles for a 4-sided polygon is  180(4-2) = 360

360 - 70 - 56 = 234

234/2 = {{{ highlight(117) }}} degrees.   Divided 234 by 2 because angle X = angle Z.   To see angle X = angle Z, you can draw a line connecting X to Z, then in isoscolese triangle XYZ, angle YXZ = angle YZX.  Similarly for triangle WXZ (angle WXZ = angle WZX).   Thus angle X = angle Z.