Water is being pumped into a trough that is 4.5m long and has a cross section in the shape of an equilateral triangle 1.5m on a side. If the rate of inflow is 2m3/min, how fast is the water level rising when the water is 0.5m deep?(adsbygoogle = window.adsbygoogle || []).push({});

Answer is 0.77m/min.

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