Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 240
to HA. The line of intersectionof these planes is op. In Fig. 203, the planes X andY, and their line of intersec-tion ah, reproduce the condi-tions of Fig. 202.The angle betweenX and Y beingfound, accordingto the principlesof § 101, the equalangle which existsbetween the gut-ter boards is… … through a clip made from a bent plate. Given the size and
Geometry, Descriptive
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