whitecollin09
whitecollin09
05-03-2018
Mathematics
contestada
In △DEF, DE = 5 and m∠F=55. Find FE.
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jdoe0001
jdoe0001
05-03-2018
check the picture below.
make sure your calculator is in Degree mode.
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Catya
Catya
05-03-2018
SOH CAH TOA
tan(55°) = 5/(FE)
FE = 5/tan(55°)
FE = 3.5
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