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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

Guest Mar 26, 2018
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Circumference= 2*pi*r

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 

RainbowPanda  Mar 26, 2018

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