A visitor to Washington, D. C. walks directly from the White House along Pennsylvania Avenue to Constitution Avenue. The distance is 2.00 km in the direction 110.T. He turns left on Constitution Avenue and walks due east for an additional 0.87 km. When he stops, the dome of the US Capitol Building is 0.32 km due south of his position. He walks to the Capitol Building and enters the Rotunda under the dome. What is his displacement from the White House?