Find the unit rate.
6,460 liters in 323 minutes
liters per minute

20

Step-by-step explanation:

6,460 divided by 323 = 20

The problem states that the law of sines needs to be used but the function tangent can also be used to solve this. Either way, the same answer will be obtained
Using the law of sines:
sin 28 / 1.6 = sin (180 - 28 - 90) / x
where x is the horizontal distance between the ends of the beams
Solving for x
x = 3.01 meters

The answer is
3.0 meters