Can someone help me with this question please?From his hotel room window on the fifth floor,Martin notices some window washers high above on the hotel across the street .Curious as to theur height above ground he quickly estimates the buildings are 50 fet apart , the angle of elevation to the workers is about 50 degrees and the angle ofd depression to the base of the hotel s 80 degrees.
An arc 4 feet substends central angle theta in a circle with diameter 9 feet
a)Determine the exact radian measure of theta
b)express the degree measure theta in degrees ,minutes and seconds to the near

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draw a picture first

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not really what I meant...

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