So, corresponding sides and corresponding angles of congruent figures have the same measures. The measures of corresponding angles in similar figures are the same, but the measures of corresponding sides in similar figures are multiples of each other (i.e. they are proportional).
An industrial flywheel. A flywheel is a rotating mechanical device that is used to store rotational energy. Flywheels have an inertia called the moment of inertia and thus resist changes in rotational speed. The amount of energy stored in a flywheel is proportional to the square of its rotational speed. Energy is transferred to a flywheel by the application of a torque to it, thereby increasing its rotational speed, and hence its stored energy. Conversely, a flywheel releases stored energy by applying torque to a mechanical load, thereby decreasing the flywheel's rotational speed.
Strike Socket and pry up. For engines that use a flywheel bolt rather than a nut, you can place a socket, or other object, just smaller than the flywheel hole on top of the crankshaft end and strike it with a hammer while prying upward on the flywheel (see #9). 1  Photo 10. 2  Tecumseh Flywheel with puller (Mod.heel Puller. Most flywheels have holes intended for a puller. #4 shows a Tecumseh flywheel with three blind holes (cored holes) cast into the flywheel. These holes were not threaded at the factory, so they were tapped to 1 / 4 - 20.