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# Pre-Cal 40S Slides September 7, 2007

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Homework review, arc length, proportionality, working with sine and cosine in the cartesian plane.

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### Pre-Cal 40S Slides September 7, 2007

1. 1. Convert each of the following to radians: 70° 245° Convert each of the following to degrees: 1
2. 2. Critical Path to Success!! A student who wants to succeed in this course will: • Always ask LOTS of questions about anything they don't understand.
3. 3. Determine the length of the arc of a circle with radius 12 cm that subtends each angle at the centre. Express each length to 1 decimal place, where necessary. 75° 310°
4. 4. Determine the length of the arc of a circle with radius 12 cm that subtends each angle at the centre. Express each length to 1 decimal place, where necessary. 75° 310°
5. 5. Find the missing side in each triangle. 4 2 5 5 5 5√(3) 6 √(72)