Educational woodworking for home and school (1908)
Park, Joseph C. (Joseph Charles), b. 1872 · New York, The Macmillan company · leaf 307
Acute Obtuse 4. Scalene(Unequal legs and angles) Fig. 251. —Triangles. … o r; *a 3-« ^ ** -s ♦ ... ,„„i,> 3.The squares on the sides of a riqht Z Flrld area Of a tnanole. triangle equal the square on its hypotenuse. Fig. 252. — Construction and area of triangles. FOR HOME AND SCHOOL 287 Side.(Upper base.Top.)
Woodwork (Manual training)
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