Respuesta :

Answer:


Step-by-step explanation:

I take it the n is meant to represent pi.

A = pi r^2   Divide both sides by pi

A/pi = pi r^2 / pi

P / pi = r^2

Answer:

A/n = r^2

Step-by-step explanation:

A = nr^2

Divide each side by n

A/n = n r^2/n

A/n = r^2