Respuesta :

Answer:

A = 25π ft² or A = 78.5398 ft²

Step-by-step explanation:

The formula for area of a circle is

A = πr² where r is the radius

We are given a diameter of 10, the radius is half of the diameter, so for our problem r = 5.  Plug that in and evaluate

A = π(5²)

 A = 25π

or

A = 78.5398 if you multiply out pi