Answer :

68+90=158
180-158=22
Sin22/21 sin90/x
x=21sin90/sin22
Sin90= 1
Sin22= 0.3746
21 times 1 = 21
21 divided by 0.3746 = 56.05979771
x=56.06 (I rounded to the nearest hundredth but you can round to whatever you would like :) )

Other Questions