r, too, may any line be di-vided into too equal parts with facilityand exactness. Problem III. To erect a perpendicu-lar at or near the end of a gicen rightline. … c 6 Take an}- point, D, on the given rightline A, B, as a centre, and to the re-quired point C,as a radius, and describean arc C, E, F. Take a portion of thisarc, say E, and make from C, E, equalto E, F. Join F and C. Now with E, C,for a radius, describe the arc G, E, H,and make from E to II equal…
Architecture
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