Babbit, Arthur B · New York, H. Holt and company · leaf 204
PROBLEM 25 To construct an angle of30 degrees—The line A Bis one of the sides. Withany point X as a centerand radius X A, draw asemicircle cutting the lineA B at C. With C as acenter and the same radius,draw arc 2 cutting arc 1at D. AD will make anangle of 30 degrees withAB. PROBLEM 26 To draw a…
Mechanical drawing
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