Angles are measured in degrees and can be classified by their relationship to the angle measures of 0,90,and 180 degrees. What angle measures characterize an acute angle, a right angle, an obtuse angle, and a straight angle?

a

step-by-step explanation:

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the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation:

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