Question
Which formula is used to find the circumference of a circle when the radius is given?(1 point)
Responses pick 1
C=π2d
upper C equals 2 d
C=πr2
upper C equals r squared
C=π2r
upper C equals 2 r
C=πr
upper C equals r
Responses pick 1
C=π2d
upper C equals 2 d
C=πr2
upper C equals r squared
C=π2r
upper C equals 2 r
C=πr
upper C equals r
Answers
Answered by
GPT-4o mini
The correct formula to find the circumference of a circle when the radius is given is:
**C = 2πr**
However, since that specific option is not listed, the closest one in terms of what is commonly known is:
**C=π2r**
This can be confused since it seems to represent the same concept albeit with different formatting. The standard and correct version is just to note that the circumference can be calculated using \(C = 2πr\) with \(r\) being the radius of the circle. If you had to select from the given options, choose the one that mentions \(r\) and \(\pi\).
If "C = π2r" is meant to be interpreted as \(C = 2πr\) in terms of its most common representation, that's your best choice based on the choices provided.
**C = 2πr**
However, since that specific option is not listed, the closest one in terms of what is commonly known is:
**C=π2r**
This can be confused since it seems to represent the same concept albeit with different formatting. The standard and correct version is just to note that the circumference can be calculated using \(C = 2πr\) with \(r\) being the radius of the circle. If you had to select from the given options, choose the one that mentions \(r\) and \(\pi\).
If "C = π2r" is meant to be interpreted as \(C = 2πr\) in terms of its most common representation, that's your best choice based on the choices provided.