Right triangles and trigonometry SAT question

The correct answer is $\frac{16}{23}$. In a right triangle, the sine of an acute angle is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse. In the triangle shown, the length of the side opposite the angle with measure $x^{\circ }$ is $16$ units and the length of the hypotenuse is $23$ units. Therefore, the value of $\text{sin}{x}^{\circ }$ is $\frac{16}{23}$. Note that 16/23, .6956, .6957, 0.695, and 0.696 are examples of ways to enter a correct answer.