Answer:
y = 4
Step-by-step explanation:
You can do this either with the unit circle or the sine function (if you know it).
Method One
Sin(30) = opposite / hypotenuse Definition
- opposite = y
- hypotenuse = 8
- Sin(30) = 1/2
1/2= y/8 Multiply both sides by 8
1*8/2 = y
y = 4
Method two
The unit circle will tell you that sin(30) = 1/2
1/2 = y/8
Done the same way as above
y = 4
