Please help quickly!!
What is the radius, diameter and r2 of a circle with a 3cm area?
![Please help quickly What is the radius diameter and r2 of a circle with a 3cm area class=](https://us-static.z-dn.net/files/d5a/1fc5d9c55e3d3aefbc3eb5650ee35cac.png)
Answer:
area of a circle = pi*r^2
3 = pi*r^2
r^2 = 3/pi
r = √(3/pi)
diameter = 2*r = 2*√(3/pi)