Find the length of the arc, s, on a circle of radius r intercepted by a central angle 0. Express arc length in terms of x. Then round your answer to two decimal places. Radius, r=10 feet; Central angle, 0=270° S= feet (Simplify your answer. Type an exact answer in terms of x. Use integers or fractions for any numbers in the expression.) S= feet (Round to two decimal places as needed.)