Hill, John A. (John Alexander), 1858-1916, Sinclair, Angus, 1841-1919 · New York : American Machinist Pub. Co · leaf 485
ig. 48 is an isosoceles triangle, so called becausetwo only of its sides ore of equal length ; to con-struct this triangle, draw base line A B, and fromeach end of base line as a center describe arcs ofany equal radius intersecting al C; draw from Clo ■extremities of base, and figure is complete.… … ti> length of biisc line, nns inter-j.rling ut ; dniwlines from these intersections 10 ends of base line,and the triangle is completed. Fig. lO is a right-angled triangle, one of itsangles being a right angle. To construct thisflgun- dniw any ba.sc line, as .1 B; from anypoint between .1 B. with…
Railroads · Locomotives
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