Question

Devin is asked to write out how to find the circumference of a circle. He writes:

Answer 1

ANOTHER correct response is B)

Answer 2

Answer:

Option B is correct

First measure the diameter then multiply that by π to find the circumference

Step-by-step explanation:

Circumference of a circle is given by:

$C =2 \pi r$

or

$C =\pi D$

where

C is the circumference of a circle

r is the radius of the circle

D is the diameter of a circle.

As per the statement:

He writes:

"First measure the radius, then multiply that by 2, then multiply that answer by π, and that will give you the circumference."

⇒$C = 2 \pi r$

We know that:

Diameter of a circle(D) = 2r

then;

$C =\pi D$

⇒First measure the diameter then multiply that by π, to get the circumference.