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OpenStudy (mythorius):
Using the technique in the model above, find the missing segments in this 30°-60°-90° right triangle. AD = 6 DB = 2 AC =
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OpenStudy (mythorius):
@KamiBug
OpenStudy (welshfella):
Triangle ACD is 30-60-90 triangle so side AD = 6 = sqrt3 x giving x = 6 / sqrt3 so CD = 6 / sqrt3 and AC = 2*6 / sqrt3
OpenStudy (welshfella):
rationalising the denominator AC = 12 sqrt3 / 3 = 4 sqrt3
OpenStudy (welshfella):
the special triangle 30-60-90 is worth remembering The sides are always in this ratio |dw:1456946189429:dw|
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