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OpenStudy (anonymous):
The diagram below shows the map of a mine. How deep is the mine shaft?
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OpenStudy (anonymous):
10 by sin 30 degrees 10 tan 30˚ 10 by tan 30 degrees 10 cos 30˚
OpenStudy (anonymous):
@cwrw238
OpenStudy (anonymous):
cud u help
OpenStudy (cwrw238):
tan 30 = opposite side / adjacent = x / 10 x = 10 tan 30
OpenStudy (cwrw238):
aid to memory SOH-CAH-TOA sine = opposite / hypotenuse cosine = adjacent / hypotenuse tangent = opposite / adjacent
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OpenStudy (anonymous):
SOH-CAH-TOA ! WILL DO =)
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