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How do you find question 1 part a???

How do you find question 1 part a???-example-1
User Mirka
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Angle AOB is one of the central angles of the cylinder in Diagram 2. Since a cylinder has 360 degrees around, you can divide that by 5 (pentagon = 5 sides, 5 central angles) to get 72 degrees as the measurement of angle AOB.






User Dittonamed
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