Answer:
3.1 cm
Explanation:
In this problem, we are given an angle and its opposite as well as the hypotenuse. So, sine should be used to find the missing side because the sine function is opposite over the hypotenuse. Therefore, the function to find the missing side would be,
. Then, to solve, isolate the variable by multiplying both sides by 4. This equals
. Finally, enter this into a calculator to get the answer, x=3.1.