d=115(alt angles) e=180-115(int angles)/(angles on st line) q=180-115(angles on st line) p=115(opp angles) c=180-e(angles on st line) b=180-d(angles on st line) f=180-51(int angles) g=51(alt angles) i=180-g(angles on st line) h=180-f(angles on st line) w=180-51(angles on st line) n=51(opp angles) m=w(opp angles) z=180-a-b a=z(opp angles)
