bearing in mind that the sum of all interior angles in a polygon is
180(n - 1), n = number of sides in the polygon.
now, each of those polygons are QUADrilaterals, namely have 4 sides, so the sum of all the interior angles for each is 180( 4 - 1) or 360°.
11)
T is then 360 - U - V - S, or 360 - 90 - 90 - 65.
12)
N is 360 - K - L - M or 360 - 64 -116 - 64.
13)
E is 360 - F - G - H, or 360 - 100 - 105 - 85.
14)
U is 360 - T - S - V, or 360 - 95 - 95 - 60.
15)
T is 360 - S - R - Q, or 360 - 70 - 110 - 70.
