An equilateral triangle is shrinking, with its area decreasing at a rate of 2 m² per hour. The rate at which a side length of

Question

An equilateral triangle is shrinking, with its area decreasing
at a rate of 2 m² per hour.
The rate at which a side length of the triangle is changing,
at the moment when the side length is 66 m, is:
m/sec

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