Circling the Earth A rope that is 1 meter longer than the circumference of the earth is pl...

Circling the Earth A rope that is 1 meter longer than the circumference of the earth is placed around the earth at the equator. If the rope is pulled up tightly to pointA, as shown in the accompanying figure, then what is the distance from point  to the surface of the earth. Use 6400 kilometers as the radius of the earth.