. First years in handicraft . Ti£. 89, octagon in the inner one. The method is given in Fig-, children find nothing formidable about this octagon ifit is explained at the blackboard, step by step, as they do theirwork. The octagon completed, lay the ruler connecting a pair ofits opposite angles and crossing the outer circumference onopposite sides. Mark these two intersections. In a similar way, mark a point on the outer circumferenceopposite each angle of the octagon. METHOD FOR DRAWING THE a circle, radius, say i%. Lay ruler across centreand mark points a and /;. 104
. First years in handicraft . Ti£. 89, octagon in the inner one. The method is given in Fig-, children find nothing formidable about this octagon ifit is explained at the blackboard, step by step, as they do theirwork. The octagon completed, lay the ruler connecting a pair ofits opposite angles and crossing the outer circumference onopposite sides. Mark these two intersections. In a similar way, mark a point on the outer circumferenceopposite each angle of the octagon. METHOD FOR DRAWING THE a circle, radius, say i%. Lay ruler across centreand mark points a and /;. 104 FIRST YEARS IN HANDICRAFT Spread dividers a distance somewhat longer than the-radius. Use points a and b as centres and draw the arcsgiving r>$ 90. La} ruler from c to the centre, crossing circle. Markd and e. Spread dividers somewhat more than half the distance b— b and e as centres, draw the arcs giving/. Lay ruler from /to centre. Mark pointy. Draw the line e It one side of an octagon The FIRST YEARS IN HANDICRAFT 105 other seven may be spaced off by spreading the dividers e-gand stepping similar lengths off around the sides may then be drawn. We have now eight points on the-outer right and left of each place other points yb away. Thiswill make the latter % apart.
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