Question

I have a circle that has a radius of 8 in. What is the circumference of the circle? What is the area of the circle? Explain your steps.

Answer 1

$circumference = 2\pi r$
$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2 \times (22 \div 7) \times 8$
$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 50.29 \: units$
$area \: = \pi {r}^{2}$
$\: \: \: \: \: \: \: \: \: = 201.14 \: units$