AB¯¯¯¯¯¯¯¯ with endpoints A(4,4) and B(5,−1) is reflected in the line y=x to create its image A′B′¯¯¯¯¯¯¯¯¯¯. Graph A′B′¯¯¯¯¯¯¯¯¯¯. Then find the perimeter of the figure formed by the segments AB¯¯¯¯¯¯¯¯, B′B¯¯¯¯¯¯¯¯¯, and AB′¯¯¯¯¯¯¯¯¯ to the nearest tenth.