Answer:
fourth option
Step-by-step explanation:
Using the sine and cosine ratios in the right triangle and exact values
sin60° = , cos60° = , then
sin60° = = = ( cross- multiply )
2x = 4 ( divide both sides by 2 )
x = 2
---------------------------------------------------------
cos60° = = = ( cross- multiply )
2y = 4 ( divide both sides by 2 )
y = 2