Question

Which circles have a circumference of units?

Choose all answers that are correct.

A.
a circle with a radius of 9 units

B.
a circle with a radius of 18 units

C.
a circle with a diameter of 18 units

D.
a circle with a diameter of 36 units

Answer 1

I'm thinking A could be one of them

Answer 2

A and C

Answer 3

??????????

Answer 4

idk im thinking a and b

Answer 5

the think is radius is only half of the circle if you would add 18 plus 18 it would be 36 but it wants the final answer to be 18 not higher or lower so if you would double the radius by 9 it would equal 18 which would be A

Answer 6

and since you'd double the radius to get the diameter 9 plus 9 is 18 so the diameter would b 18