Answer:
15/2 sqrt(3) =z
15/4 sqrt(3) =y
Step-by-step explanation:
cos theta = adjacent side/ hypotenuse in a right triangle
cos 30 = z / 15
Multiply each side by 15
15 cos 30 = z
15 ( sqrt(3)/2)
15/2 sqrt(3) =z
sin theta = opposite side/ hypotenuse in a right triangle
sin 30 = y / z
Multiply each side by z
z sin 30 = y
z (1/2)=y
Z = 15/2 sqrt(3)
15/2 sqrt(3)*1/2
15/4 sqrt(3) =y
