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OpenStudy (anonymous):
The measures of the sides of PQR are given in the diagram. What is m, correct to two decimal places?
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OpenStudy (anonymous):
OpenStudy (anonymous):
64.00° 53.31° 42.52° 32.80°
OpenStudy (anonymous):
I think it's A.
OpenStudy (calculusxy):
cos A = (b2 + c2 − a2) / 2bc
OpenStudy (adamaero):
|dw:1418163767139:dw|
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OpenStudy (adamaero):
Did you do something like what I showed, to get your answer of 64 deg?
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