Emma measured the button on her shirt. Then she calculated that it has an area of 50.24 square millimeters. What is the button's circumference? Use 3.14 for 𝜋.
_______ = millimeters
So, we need the radius to solve this. Since we know that the area is 50.24
r=√A/pi so 50.24/3.14=√16=4
Our radius is 4, let's plug in! 2*3.14*4= 25.12