Place paper so that the long edges shall be parallel with the front of desk; find the center of paper; with this point as a center, draw a two and one-half inch circle; draw its vertical diameter and divide it into five equal parts.

The point below the upper end is No. 1.: below it, No. 2; and so on.

With a radius equal to the diameter and ends of diameter as centers, draw an intersection of arcs to the right.

Place the ruler across the circle through point 2 and intersection of arcs; where the ruler crosses the circle to the left, place a point. A line drawn from this point to the upper end of diameter is one side of a pentagon: with the dividers set off the remaining sides. Each side shall be the base of an isosceles triangle having a slant height of two inches, with its apex pointing outward.

Construct circular margins on alternate sides of all triangles.

Transfer to a scale of one-half to one; cut, crease, fold and glue.