HM 34 GEOMETRICAL PROBLEMS. PROBLEM XV. To find a mean proportional between two given right lines A and B. Draw any right line CE and init take CD equal A, and DE equalB; bisect CE in F, and with thecentre F and radius FC or FEdescribe the semicircle CGE;draw DG perpendicular to CE:then DG will be…
Surveying · Plane trigonometry
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