Question

Select all pairs that could be appropriate for diameter and circumference.

What is the formula for calculating the diameter (D) of a circle when the circumference (C) is given?
a) D = C/π
b) D = C * π
c) D = 2π/C
d) D = √(C/π)

Answer 1

The correct formula to find the diameter of a circle from its circumference is D = C/π. This is based on the relationship C = πD.

Step-by-step explanation:

The formula for calculating the diameter (D) of a circle when the circumference (C) is given is D = C/π. This formula is derived from the relationship between the circumference and the diameter, which is expressed as C = πD. Therefore, rearranging this to solve for D, you divide both sides by π, resulting in D = C/π.