Kidner, T. B. (Thomas Bessill), b. 1866 · Toronto : Educational Book Co. · leaf 89
terior angle of the hexagon being 120, the exterior must be the supplement = 60 . (Of course, such terms as complement and supplement need not be used with children at this stage.) A few illustrations, such as are shown in the diagram B, will make this clear, and afford another Opportunity for some… … tion than that afforded by the diagram is scarcely necessary; the ACEP NUM see nein second and third sides are drawn by the ait of the set square as shown, and made equal in length io the fet By sliding the square along, the fourth and hfth sides ean be dircvn, and the sixth, parallel to the base,…
Travaux manuels · Papier, Travail du · Paper work · Manual training
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