Paint is used to create a circle on a square canvas. The diagram shows the dimensions, in feet (ft), of the canvas. The shaded part of the diagram represents the part of the canvas that is painted blue.

Circle contained within a square. The circle and square share the same center and have touching edges at 0 degrees, 90 degrees, 180 degrees, and 270 degrees. The square has side length labeled 6 feet.

Which value is closest to the area, in square feet, of the part of the canvas that is painted blue?
5.2
7.7
17.2
26.6