A piece of wire of length 12 cm was cut into two pieces. The first was folded to form an equilateral triangle, and from the second piece a square. If the length of the side of the square increases at a rate of 0.3 cm / min, find the amount of decrease in the length of the side of the triangle at the same instant.

Trigonometry (MindTap Course List)
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Chapter3: Additional Topics In Trigonometry
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A piece of wire of length 12 cm was cut into two pieces.
The first was folded to form an equilateral triangle, and from
the second piece a square. If the length of the side of the
square increases at a rate of 0.3 cm / min, find the amount
of decrease in the length of the side of the triangle at the same
instant.
Transcribed Image Text:A piece of wire of length 12 cm was cut into two pieces. The first was folded to form an equilateral triangle, and from the second piece a square. If the length of the side of the square increases at a rate of 0.3 cm / min, find the amount of decrease in the length of the side of the triangle at the same instant.
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