Circle Angles Worksheet Page 2
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412/14/2015
Example 16.2.2
Example 16.2.3
Erie, PA is approximately due north of
A rope is being wound around a drum with
Columbia, SC. Erie has a latitude of 42
radius 0.327 m. How much rope will be wound
degrees north, and Columbia has a latitude of
around the drum if it is rotated 132.6°?
34 degrees north. Find the distance between
the cities if the radius of the earth is 6400 km.
Example 16.2.4
Examples 16.2.5 / 16.2.5*
Two gears are adjusted so that the smaller gear
Find the areas of sectors with:
(radius 3.6 inches) drives the larger gear (radius
5.4 inches). If the smaller gear rotates through
a) Radius 15.20 feet and central angle 108°
150°, through how many degrees will the larger
b) Radius 321 meters and central angle 15°
gear rotate?
Circular Functions Notes
Unit Circle: Memorization #2
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