0. For a button to fit through its buttonhole, the hole needs to be the size of the button's diameter. What size buttonhole is n
eeded for a button with a circumference of 7.38 centimeters? (Use the value of 3.14 to represent pi.)
1 answer:
The formula for the circumference of a circle is : C =2 x PI x r
Using this formula and the provided information we can find the diameter:
Circumference is given as 7.38 cm
PI is given as 3.14
So now we have:
7.38 = 2 x 3.14 x r
Multiply 2 and 3.14:
7.38 = 6.28 x r
Divide both sides by 6.28:
r = 7.38 / 6.28
r = 1.17516
Diameter = 2 x r
Diameter = 2. 1.17516
Diameter = 2.35 cm
The button hole needs to be 2.35 cm
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