Question

The formula for the lateral surface area of a cone is A=πr√(h^2+r^2). (A)Solve for r and simplify the result, if possible. (B) If the lateral surface area of a cone is 10 square feet and the height is 16 inches, what is the radius of the cone in inches? Round your answer to the nearest hundredth of an inch. (C) What is this radius in feet? Please help!!!! :(