Drill Size = Major Diameter - (.975 divided by the number of threads per inch). For example, with a 1/4-32 tap, .250 - .0305 = .2195 (7/32 or #2 drill size). Metric tap drill sizes are the diameter minus the pitch (For example, 42mm x 1.5 tap uses a 40.5 drill). Follow these links to browse our taps and die selection:
It is easy to construct a concave figure if the figure has at least 4 sides Just make sure that one interior angle is bigger than 180 degrees. In other words, an interior angle should be a reflex angle Why am I saying at least 4 sides? It is possible to make a concave triangle? The answer is no! Since the sum of the interior angles in any triangle must add up to 180 degrees, no interior angles can be more than 180. It is impossible! Buy a comprehensive geometric formulas ebook.
Example 2: Find the exterior angle sums, one exterior angle at each vertex, of a convex nonagon. The sum of the exterior angles of any convex polygon is 360Â°. Example 3: Find the measure of each interior angle of a regular hexagon (Figure 3). Figure 3 An interior angle of a regular hexagon. Method 1: Because the polygon is regular, all interior angles are equal, so you only need to find the interior angle sum and divide by the number of angles.