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7.2 Central Angle & Arc Length

7.2 Central Angle & Arc Length. Arc Length. s = Arc length. r.  radians. r.  is the radian measure of the central angle s & r have same linear units. (not degrees!). Example 1. Use Arc Length.

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7.2 Central Angle & Arc Length

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  1. 7.2 Central Angle & Arc Length

  2. Arc Length s=Arc length r  radians r  is the radian measure of the central angle s & r have same linear units (not degrees!)

  3. Example 1 Use Arc Length A bicycle has wheels that are 28 inches in diameter. How far does the bicycle move as the wheels roll through an angle of 15?

  4. WheelAnimation

  5. Example 1 Use Arc Length A bicycle has wheels that are 28 inches in diameter. How far does the bicycle move as the wheels roll through an angle of 15? Diameter = 28 Radius = ½(28) = 14 28 Change15 to radians same linear units

  6. Homework #711 Pg. 394 33 – 44 all & Worksheet 2

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