Question

What is the value of “r” if
2080m cubed =. Pi x r squared

Answer 1

Start with

$2080 = \pi x r^2$

Divide both sides by pi:

$\dfrac{2080}{\pi} = x r^2$

Divide both sides by x:

$\dfrac{2080}{\pi x} = r^2$

Consider the square root of both sides:

$r=\sqrt{\dfrac{2080}{\pi x}}$