Philip Carret, who wrote The Art of Speculation (1930), believed âmotiveâ was the test for determining the difference between investment and speculation. âThe man who bought United States Steel at 60 in 1915 in anticipation of selling at a profit is a speculator.
The formula for finding the total measure of all interior angles in a polygon is (âânââ â 2) x 180, where âânââ is the number of sides, as well as the number of angles, the polygon has. Some common polygon total angle measures are as follows: The angles in a triangle (a 3-sided polygon) total 180 degrees.
Note: when we add up the Interior Angle and Exterior Angle we get a straight line, 180Â°. (See Supplementary Angles) A Polygon is any flat shape with straight sides. The Exterior Angles of a Polygon add up to 360Â°. In other words the exterior angles add up to one full revolution. Press Play button to see. (Exercise: try this with a square, then with some interesting polygon you invent yourself.) Note: This rule only works for simple polygons.