1. Quadrilateral, <span>Sum of Interior Angles= 360
90+ 90 + 60 + x = 360 x + 240 = 360 x = 360 -240 x = 120
2. </span><span>length of the mid-segment of trapezoid is half the sum of the lengths of the two parallel sides </span><span> </span><span>x = (5+9)/2 = 14/2 =7</span>
1. The missing angles are 90 degrees each, and every quadrilateral shape has 360 degrees, so add all the degrees together (90+90+60=240) and subtract 360 from 240 so (360-240=answer)
