The Artisan, or, Mechanic's instructor : containing a popular, comprehensive and systematic view of the following sciences ... also biographical notices of eminent scientific men, enriched by portraits : with many interesting and valuable articles relating to the mechanical and useful arts : the whole intended as a companion to the institutes (1825)
Carey, George G · London : Printed for William Cole · leaf 394
THE ARTISAN, 370 upon another straight line, makes the ad- D BE ; therefore the angle DEB is greater than the angle DBE: Now to C … through the centre , it will cut that line jacent angles equal to one another, each at right angles ; and if it cut it at right of the angles is a right angle. Therefore angles , it will bisect it. the angle GDB is a right angle: But F D B is likewise a right angle ; where- Let ABC be a circle, and…