Question

Encontrar el área sombreada de la figura B

Answer 1

A=$\frac{1}{2}(\pi (2cm)^{2}) - \frac{1}{2}(\pi (1cm)^{2})$$</p><p>A=\frac{1}{2}\pi (4cm^2-1cm^2)$

A=$\frac{1}{2} \pi (3cm^{2} )$
A≈4,7cm²