The angles of any polygon taken together, make twice as many right-tingles, wanting 4, as the figure hath sides; which pro- l1erty, as well as the former, belongs to both regular and irregular polygons. 3. ... Therefore, to find the area of any regular polygon, not exceeding 12 sides, square the side, and multiply that square by the corresponding tabular number in the preceding table. Or, generally , if sanbsp;...
|Title||:||Dictionary of the mathematical and physical sciences, according to the latest improvements and discoveries|