The volume V (in cubic feet) of a right cylinder with a height of 6 feet and radius r (in feet) is given by V = 6?r². Solve the formula for r. Then find the radius of the cylinder when the volume is 1206 cubic feet. Round your answer to the whole number.The formula solved for r is r = ___ .When the volume is 1206 cubic feet, the radius is about ____ feet.