The length of a stalactite (in mm) has been measured at the beginning of every fourth year since the year 2000. the data throug
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Answer:
<h2>7</h2>Step-by-step explanation:
Look at the picture.
We have the triangle 45° - 45° - 90°. The sides are in ratio 1 : 1 : √2.
Therefore we have the equation:
