Question

If you know the diameter of a circle, how do you find its circumference?
A) Multiply the diameter by π.
B) Multiply the diameter by 2π.
C) Square the diameter and multiply by π.
D) Divide the diameter in half and multiply by π.

Answer 1

Answer:

A

Step-by-step explanation:

The formula for circumference is C=πd, meaning that you would multiply the diameter by π.

Answer 2

Answer:

a

Step-by-step explanation:

The formula for circumference is C=πd, meaning that you would multiply the diameter by π.