area of sector question (1 Viewer)

samsonhohoho

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For i) The answer is 1/2(6)^2 x (2pi/3)
=12 pi cm^2

but i dont get how. Please help, thanks.
 
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The formula for the area of a sector is: .

So just substitute the numbers:


We get the angle of AOC from taking pi radians and subtracting angle COB to get 2pi/3.
 

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