Question

The circumference is _ the area.

Answer 1

Equal to the area. Area of circle is
$\pi r^2$
This equals to $4 \pi$ due to 2^2.
Circumference is $2 \pi r$
This equals to $2 \pi (2)$
When you multiply the 2 and the radius together, they equal to 2^2.
Which results to $4 \pi$