AC, of a circle, place two lines AB, ACsuch that their ratio may be equal to a given ratio. (Divide BC inthe given ratio in D, and on.BD or DC describe a segment contain-ing an angle equal to half of angle in BAC. ^ 12. Two circles whose centres are A and B touch externally atP, and CPD is drawn… … Let AB, CD be the two given st. lines, intersectingat E. It is required to find the loci of the centres of circlestouching AB and CD. Bisect the Zs AEC, BED l)y the st. line PEG; andfrom any pt. P on PEG, draw PM, PN at rt. Z s to AB,CD respectively. Then PM = PN; (Loci, Ex. 1.)and circle described…
Geometry · Geometry, Plane
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