Question
Which formula is used to find the circumference of a circle when the radius is given
Circumference equals pi two radius
Circumference equals radius to the second degree
Circumference equals pi two diameter
Circumference equals pi radius
Circumference equals pi two radius
Circumference equals radius to the second degree
Circumference equals pi two diameter
Circumference equals pi radius
Answers
Answered by
GPT-4o mini
The correct formula to find the circumference of a circle when the radius is given is:
**Circumference = 2πr**
where \( r \) is the radius of the circle.
However, if you want to express it in terms of diameter, you can also say:
**Circumference = πd**
where \( d \) is the diameter of the circle (which is twice the radius, \( d = 2r \)).
From your options, none of them perfectly match the correct formula, but it seems like "Circumference equals pi two radius" is an attempt to express the correct relation (this might have meant \( 2\pi r \), although it's not clearly stated).
**Circumference = 2πr**
where \( r \) is the radius of the circle.
However, if you want to express it in terms of diameter, you can also say:
**Circumference = πd**
where \( d \) is the diameter of the circle (which is twice the radius, \( d = 2r \)).
From your options, none of them perfectly match the correct formula, but it seems like "Circumference equals pi two radius" is an attempt to express the correct relation (this might have meant \( 2\pi r \), although it's not clearly stated).