Question

If r is the radius of a circle and d is its diameter, which of the following is an equivalent formula for the circumference C = 2r?

A. C = d2
B. C = 2d
C. C = rd
D. C = d

Answer 1

The c = circumference.

Answer 2

now, the r = radius

Answer 3

the d = diameter

Answer 4

so c

Answer 5

@TheProfessor35

Answer 6

@preetha

Answer 7

But if you want circumference, shouldn't PI be in the formula?

Answer 8

for this equation i am pretty sure you are given the circumfrence. @wolf1728