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In order for a button to fit through its buttonhole, the hole needs to be the size of the button's diameter. What size buttonhole is needed for a buttonhole with a circumference of 9.42 centimeters?
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In order for a button to fit through its buttonhole, the hole needs to be the size of the button's diameter. What size buttonhole is needed for a buttonhole with a circumference of 9.42 centimeters?

User Marwin
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1 Answer

7 votes
π = pi = 3.1415926 etc.
Circumference = diameter × π
We can rearrange this to show:
Diameter = circumference ÷ π

Diameter = 9.42 ÷ π
Diameter = 2.998 cm

The buttonhole should be around 3 cm.
User Safaa Elgendi
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8.4k points
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