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need help with this question pls

cerenetie  Feb 22, 2018
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+2

3. 

 

The area, A, of a circle's sector be found as

 

A  =  (1/2) r^2  (theta in rads)  

 

A  =  (1/2) (5^2) (pi/4)

 

A  = (25/8)pi  cm^2   =  9.8 cm^2

 

 

cool cool cool

CPhill  Feb 22, 2018

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