Question

¿cual es el area de la region sombreada?

Answer 1

(pi)(n^2 - n^2)

Explanation:

A = (pi)r^2

r = n

A_n = (pi)n^2

r = m

A_m = (pi)m^2

A_sombreada = A_n - A_m =

= (pi)n^2 - (pi)m^2

= (pi)(n^2 - n^2)