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Mathematics 13 Online
OpenStudy (anonymous):

Please help me !

OpenStudy (anonymous):

@satellite73 @bahrom7893

OpenStudy (anonymous):

you need the third side

OpenStudy (anonymous):

what is the third side ?

OpenStudy (anonymous):

you can find it by pythagoras \[a^2+15^2=25^2\] etc or you can recognize this as a 3 - 4 - 5 right triangle with each side multiplied by 5, the third sides is \(20\)

OpenStudy (anonymous):

|dw:1368665579349:dw|

OpenStudy (anonymous):

that third side

OpenStudy (anonymous):

OpenStudy (anonymous):

ABCD

OpenStudy (anonymous):

btw i guess it did not occur to the moron who wrote this question that \[\frac{15}{25}=\frac{3}{5}=.6\] but no matter

OpenStudy (anonymous):

i would say b

OpenStudy (anonymous):

secant is "hypotenuse over adjacent" so \(\frac{25}{20}=\frac{5}{4}\) for that one

OpenStudy (anonymous):

tangent is opposite over adjacent so \(\frac{15}{20}=\frac{4}{5}\) for that

OpenStudy (anonymous):

cosine is adjacent over hypotenuse. for angle Z it would be \(\frac{15}{25}=\frac{3}{5}\)

OpenStudy (anonymous):

so would my answer be b ?

OpenStudy (anonymous):

@satellite73

OpenStudy (anonymous):

@satellite73

OpenStudy (anonymous):

@satellite73

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