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I need the area of each sector in the 3 circle. Answers in term of pie . 11,14,17

I Need The Area Of Each Sector In The 3 Circle Answers In Term Of Pie 111417 class=

Sagot :

11.

(π*[tex] 3^{2} [/tex]*45) / 360 = (9π) / 8;

12. 

12π;

13.

π/2 ;