A circle divided into fifths.
A circle divided into fifths with one fifth separated.
A circle divided into fifths with one fifth shaded.
A circle divided into fifths with two fifths shaded.
A circle divided into fifths with three fifths shaded.
A circle divided into fifths with four fifths shaded.
Four fifths of a circle.
One fifth of a circle.
Three fifths of a circle.
Two fifths of a circle.