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Mathematics 21 Online
OpenStudy (anonymous):

find the angle of the sector of a circle of radius 20 units where the area is equal to the lateral area of a cone with radius 8 units.

OpenStudy (anonymous):

@Hannah_Waller

OpenStudy (anonymous):

im not sure how to do this one... i lookeed it up and this sitee kinda says something about it... http://www.mathopenref.com/arcsectorarea.html

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