Question 1105946
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<pre>
The area of a sector is  A = {{{(1/2)*r^2*alpha}}},


where r is the circle radius and {{{alpha}}} is the corresponding central angle in radians.
</pre>


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See the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Surface-area/Area-of-a-sector.lesson>Area of a sector</A> 

in this site.