Question

Find the area and the circumference of a circle with radius 2m. use the value 3.14, and do not round your answers. be sure to include the correct units in your answers.

Answer 1

The area of a circle is given by:
$A_c = \pi r^2$
Plug and chug:
$A_c = \pi (2)^2 = 12.56m^2$

Circumference is given by (d = 2r):
$C_c = \pi d$
Plug and chug:
$C_c = \pi (4) = 12.56m$

Those are your answers!