Respuesta :

We have the fourth part of a circle, so first we are going to calculate the area of the complete circle (AC)

[tex]AC=\pi r^2=\pi\cdot20^2=400\pi[/tex]

then we divided AC between 4

[tex]A=\frac{400\pi}{4}=100\pi[/tex]

the area is 100π

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