Answer to Question #21741 in Geometry for Brooke

Question #21741

Find the measure of the angle to the nearest tenth of a degree.
cos Y= 0.5135

Expert's answer

cos(Y)=0.5135arccos(cos(Y))=arccos(0.5135)
Y=arccos(0.5135)=59.1 degree from the tables of cosines.

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