Respuesta :

irspow
The area of a circle is:

A=πr^2, where π is the constant pi and r is the radius of the circle.

In this case the radius is 4cm:

A=π(4^2) cm^2

A=16π cm^2  (exact)

A≈50.27 cm^2  (to the nearest hundredth of a square centimeter)