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The figure below shows a circle at center O intersected by a first line that forms a diameter AB and by a second line that forms a chord AC. If the circumference of the circle is 720 m and the angle CAB between the two lines is 20°, what is the length of the arc segment BC?

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The figure below shows a circle at center <i>O</i> intersected by a first line that forms a diameter <i>AB</i> and by a second line that forms a chord <i>AC</i>. If the circumference of the circle is 720 m and the angle <i>CAB</i> between the two lines is 20°, what is the length of the arc segment <i>BC</i>?<br><img src='https://www.fatskills.com/images3/civilservice/ArcProblem'/>






 
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