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OpenStudy (anonymous):
Need help on geometry work
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OpenStudy (anonymous):
alright go on
OpenStudy (anonymous):
What is the length, in units
OpenStudy (anonymous):
|dw:1342554617339:dw|
OpenStudy (anonymous):
okay sin(30)= a/12+9 1/2 = a/21 2a=21 a=10.5 so BD=\(\sqrt(10.5^2-21^2)\) =
OpenStudy (anonymous):
a= CB
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OpenStudy (anonymous):
will it be 18
OpenStudy (anonymous):
yeah
OpenStudy (anonymous):
no wait
OpenStudy (anonymous):
it's making sense to u
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