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OpenStudy (anonymous):
find missing angle of triangle a - 1 b - 1 c - 1.41
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OpenStudy (anonymous):
OpenStudy (ja1):
We are going to use the Pythagorean Theorem here. Are you familiar with this formula?
OpenStudy (ja1):
Oh wait! The missing angle. My bad I thought it was side :)
OpenStudy (anonymous):
Okay, so 1^2 + 1^2 + 1.41^2 ?
OpenStudy (ja1):
My bad, it's a² = b² + c² - 2ba cosA
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OpenStudy (anonymous):
1^2 + 1^2 + 1.41^2 -2 cos 1?
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