Respuesta :

The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.

Answer:

d = 1.59   c = 5

Step-by-step explanation:

The formula to calculate the area of a circle is

A =  π  r ^2

This means that if  r =  5 cm, the area is  

A =  5^2  π  cm ^2  =  25 π  cm^ 2 ≈

 78.539816 cm^ 2