Answer:
D. sin 30° = 5/x
Step-by-step explanation:
recall that for a right triange, considering one of the acute angles θ
sin θ = length of opposite side / length of hypotenuse
from the picture, we can see that
θ = 30°, length of opposite site = 5 and length of hypotenuse = x
substituting this into the above equation
sin 30° = 5/x
