Essentials of drafting; a text and problem book for apprentice, trade and evening technical schools (1918)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 31
3 £quiloferol-AII sidesfqual. Isosce/es- Two^ides egual. Sca/ene -All sidesdifferent rig. 26 Right Triangle - One angleis a right angle. the center. Lines drawn from the circumference to the centerform angles, which are measured in degrees. Two lines crossingeach other at the center of the circle,…
Mechanical drawing
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