25. A.figure is that which is enclosed by oneor more boundaries. 21. A circle is a plane figure bounded byone line, which is a curve, a b c d a, and whichis called the circumference; it is everywhere equally distant from a given point o, calledthe centre. … 22. The radius of a circle is a right line o n,drawn from the centre to the circumference. Obs.—^The word radius is frequently used in Geometry,though it does not occur in the Elements of Euclid.
Design · Decoration and ornament · Art
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