If the length of the angle of a triangle measuring 30 degrees - 60 degrees - 90 degrees is 20 cm, what is the length of the side opposite the angle of 30 degrees?
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Tips for Remembering the 30-60-90 Rules
Remembering the 30-60-90 triangle rules is a matter of remembering the ratio of 1: √3 : 2, and knowing that the shortest side length is always opposite the shortest angle (30°) and the longest side length is always opposite the largest angle (90°).
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