Geometry 8.5a, Find Trig ratios for obtuse angles with a scientific calculator

First published at 14:15 UTC on November 30th, 2018.

An explanation of how to find trig ratios for obtuse angles with a scientific calculator. Which order to push the keys to find a sine, cosine, or tangent ratio for an obtuse angle.

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CategoryEducation
SensitivityNormal - Content that is suitable for ages 16 and over
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