Answer is B
Step-by-step explanation:
You have the side opposite the angle and the Hypotenuse so use soh
Sine(x) = opposite/Hypotenuse
Sine(x) = 9/19
X = sin-1(9/19) - - - - - here the - 1 is to the power of
X= 28,27371363
X= 23,3
First you express it as a fraction so that would be 2475/1000 which can be simplified to 99/40