guys, i need help. I cannot figure out how many square feet are in a circle that's 15ft across. could someone please explain the formula?

Guest Apr 28, 2022

#1**+1 **

Area of a circle = pi*r^2 (*)

they give you the diameter of the circle so using the relationship btwn diameter, d, and radius, r ---> r = d/2

thus the radius of this particular circle is 15/2.

Now plugging the values into equation (*), A = pi*(15/2)^2 -----> A = 225pi/4

SecretSquirrel3 Apr 28, 2022

#1**+1 **

Best Answer

Area of a circle = pi*r^2 (*)

they give you the diameter of the circle so using the relationship btwn diameter, d, and radius, r ---> r = d/2

thus the radius of this particular circle is 15/2.

Now plugging the values into equation (*), A = pi*(15/2)^2 -----> A = 225pi/4

SecretSquirrel3 Apr 28, 2022