m<1 = 36° (str. <s)
m<2 = 90°
m<4 = 36° (str. <s)
m<5 = 90° (vert. opp. <s)
m<6 = 54° (vert. opp. <s)
m<7 = 126° (str. <s)
m<8 = 54° (< sum of triangle)
m<9 = 126° (vert. opp. <s)
m<10 = 54° (vert. opp. <s)
m<11 = 36° (alt. <s)
m<12 = 144° (str. <s)
m<13 = 36° (vert. opp. <s)
m<14 = 144° (vert. opp. <s)
