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OpenStudy (anonymous):
Select all the true expressions that can help you find the length of DE in this diagram.
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OpenStudy (anonymous):
|dw:1415505202217:dw|
OpenStudy (anonymous):
\[\frac{DE}{\sin(47)}=\frac{20}{\sin(109)}\] would be the one that springs to mind first it is the law of sines
OpenStudy (anonymous):
And then it would be\[20(\sin47)/\sin 109 \] = DE ?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
okay thank you
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