Answer:
You use trigonometry.
Step-by-step explanation:
You can use soh cah toa. Basically you pic one side and if the interior angle is opposite or next to it, you you soh, or cah, or toa, it's based on where the angle is.
3 3/5 gallons per hour
3/5 times 6 equals 18/5
18/5=3 3/5
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