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EXPLANATION = BRAINLIEST


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Sagot :

Geometry

The formula for the area of a sector is

[tex]k = \frac{m}{360} \times a[/tex]

Input the things which you already know. (m)

[tex]k = \frac{45}{360} \times a[/tex]

a=πr^2

a=36π

Input this into the equation.

[tex]k = \frac{45}{360} \times 36 \times 3.14[/tex]

[tex]k = \frac{45}{360} \times 113.04[/tex]

[tex]k = 14.13[/tex]