ZnappyDooZ
  • ZnappyDooZ
Geometry help please!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1432820337410:dw|
anonymous
  • anonymous
This is a shabby-looking example of our carnival ride. Each length from the center to the outside is 25 ft. That's what you're given.
anonymous
  • anonymous
They want to know the central angle, right? Do you know how a central angle is found? A circle has a measure of 360 degrees. We have 20 angles in that circle. What does one angle measure, then?

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anonymous
  • anonymous
360/20?
anonymous
  • anonymous
Which comes out to; 18.
anonymous
  • anonymous
18 is the MEASURE of the arc which is equivalent to the central angle's measure. Now we are finding arc LENGTH. Two different thing, totally! What do you get for the arc length, then?
anonymous
  • anonymous
7.85
anonymous
  • anonymous
Which is 2.5pi.
anonymous
  • anonymous
Now for the area of the sector...
anonymous
  • anonymous
The area formula for a sector of our circle is as follows: 18/360 * pi* r^2.
anonymous
  • anonymous
98.17
anonymous
  • anonymous
Perfect! See!? It must have been my awesome drawing...
anonymous
  • anonymous
Ah, I didnt include the formula.

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