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Sector Area

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shark
 
Reply Tue 19 Sep, 2006 08:34 pm
Find the area of the dark blue sector in a circle. The radius of the circle is 4 units and the length of the arc (the curved edge of the sector) measures 7.85 units. Express answer to the nearest tenth of a square unit.
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Type: Discussion • Score: 1 • Views: 795 • Replies: 2
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engineer
 
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Reply Wed 20 Sep, 2006 02:46 pm
Find the circumference and area of the circle using the radius. The ratio of the area of the sector to the area of the circle is the same as the ratio of the arc length of the sector to the circumference.
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shark
 
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Reply Thu 21 Sep, 2006 06:26 am
ok
Great tip.

Thanks
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