125 + 55 = 180
0.5278
13.8462
94.7455
cos(125) = cos(180 - 55) = cos(180)*cos(55) + sin(180)*sin(55) = -cos(55) since cos(180) = -1, and sin(180) = 0 So A = 55 degrees.
so 180 divided by 99 equals 0.55 then 0.55*100=55 as a percentage %55
55 + x = 180 x = 180 - 55 x = 125
125-180 = -55
t + 98 + 55 = 180 t + 153 = 180 t = 180 - 153 t = 27
125 + 55 = 180
22.5
180
0.5278
13.8462
0.0074
94.7455
cos(125) = cos(180 - 55) = cos(180)*cos(55) + sin(180)*sin(55) = -cos(55) since cos(180) = -1, and sin(180) = 0 So A = 55 degrees.