CPM Homework Help : MC2 Problem 10-119

Sketch a circle with a radius of $4$ cm. Find the area and circumference of the circle.

Hint

$A = r^2π$
$C = 2πr$

Help

Substitute $4$ for $r$ in each equation.

Partial Answer

$A = 16π = 50.27$ cm^{$^{2}$}
What is the circumference?