Respuesta :

kwokyy

Answer:

value of pi

Step-by-step explanation:

area of circle = pi x r x r

d= 2 x r

r = 1

pi x 1 x 1 = pi

ameliaswift
The formula of the area of a circle = pi * (radius)^2
Radius is half of the diameter
So radius = 2/2 = 1
Then the area = pi * 1^2 = pi * 1 =pi