Which of the following expressions correctly shows the relationship between the circumference and the area of a circle?(1 point)

Question

Responses

C^2=4πA
upper C squared equals 4 pi upper A

A=πr^2
upper A equals pi r squared

C/d=π
Start Fraction upper C over d End Fraction equals pi

C=2πr

Answer 1

The expression that correctly shows the relationship between the circumference and the area of a circle is:

C = 2πr

This formula gives the circumference (C) of a circle in terms of its radius (r).

The area (A) of a circle is given by the formula A = πr², which relates the area to the radius as well. The other options either relate to the circle’s properties in different ways or are representations of those properties.

If you are looking for a direct relationship between circumference and area, you can use the formulas to show a derived relationship, but in terms of the standard formulas, C = 2πr is correct for circumference.