Respuesta :

Heather

Answer:

About 9,346.2 mm²

Step-by-step explanation:

First, find area of the smaller circle and the larger circle.

[smaller]

πr²

π25²

Around 1,963.5

[larger]

πr²

π60²

Around 11,309.7

[find shaded region]

Larger / shaded - smaller = around 9,346.2 mm²

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