Respuesta :

1. 135.4896pi m^2
2. 39.69pi cm^2
3.1017 mm^2
4.225pi cm^2

The formula for these problems is [tex]A= \pi r^{2} [/tex]

1. 135.4896pi m^2
2. 39.69pi cm^2
3.1017 mm^2
4.225pi cm^2

The formula for these problems is 

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