Question

Which of the following statements is true?
a.Diameter x Φ=circumference
b.Diameter x μ=circumference
c.Diameter x β=circumference
d.Diameter x π=circumference

Answer 1

What is the circumference formula?

Answer 2

To add on to bmp if you still dont know, 2r = diameter.

Answer 3

? i don't get it.

Answer 4

The question is asking for the circumference. Do you remember what is the formula for it? What's the circumference of a circle? If you don't know it, you may google. Then, as @Puzzhang mentioned, diameter = 2*radius

Answer 5

Maybe a better wording is this: From the symbols above, which one do you recognize?

Answer 6

to further what @bmp has said, I'll just provide some insight into each of the symbols
Φ -> theta, angle measure
μ -> mu, population mean in statistics
β -> beta, population slope in a linear regression model
π -> pi, ratio of length of the circle line divided by diameter

Which one applies best?

Answer 7

is it C = 2πr

Answer 8

Correct. Now, remember that 2*r = diameter. So, what is the formula in terms of the diameter?

Answer 9

i think its d.

Answer 10

Correct :-)

Answer 11

thank you all :)