Sin yderajat / 8 = sin 45derajat / 8 akar 2

sin y°/8= sin 45/8 akar2
[tex] \sin y = \frac{1 \sqrt{2} }{2} \: \times \frac{8}{8 \sqrt{2} } [/tex]
[tex]sin \: y = \frac{1}{2} [/tex]
[tex] \sin \: y = sin \: 30[/tex]
y=30°