A cylinder’s volume is \(126\pi\) cubic centimeters. Its height is \(14\) centimeters. Suppose we wanted to find how long is the cylinder’s radius. A cylinder’s volume formula is
where \(V\) stands for volume, \(r\) for radius and \(h\) for height. Let \(r\) represent the cylinder’s radius, in centimeters. We can solve this problem using the equation:
Check whether \(3\) is a solution for \(r\) of this equation.