A CD is shaped like a circle with a diameter of 12 cm. To the nearest centimeter, what is the circumference of the CD?A.24 cmB.38 cmC.19 cmD.75 cmSUBMITarrow_backPREVIOUS
Question
A CD is shaped like a circle with a diameter of 12 cm. To the nearest centimeter, what is the circumference of the CD?A.24 cmB.38 cmC.19 cmD.75 cmSUBMITarrow_backPREVIOUS
Solution
The formula to calculate the circumference of a circle is C = πd, where C is the circumference and d is the diameter.
Given that the diameter of the CD is 12 cm, we can substitute this value into the formula:
C = π * 12 cm
Using the approximation of 3.14 for π, we get:
C = 3.14 * 12 cm = 37.68 cm
Rounding to the nearest centimeter, we get 38 cm.
So, the answer is B. 38 cm.
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