A four-sided polygon having all four sides of equal length. The sum of the angles of a rhombus is 360 degrees. Regular Polygon. A regular polygon is a polygon whose sides are all the same length, and whose angles are all the same. The sum of the angles of a polygon with n sides, where n is 3 or more, is 180  (n - 2) degrees.
Bigger muscle groups: 30-60 total reps per workout session. Smaller muscle groups: 20-30 total reps per workout session. Hence, your chest workout should have a total of 30-60 reps per workout because it belongs to the big muscle group. 3. Determine your ideal number of sets and reps: Because your goal is to build muscle mass, the ideal set/rep range for your chest workout is 3-4 sets of 6-8 reps or 2-3 sets of 9-12 reps.
The Argument for High Reps (15 or More) If you've ever tried a set of 15 or more reps, you know it can be difficult. If you're unaccustomed to training in this zone, you'll find your muscles fatigue quickly, and 40 pounds starts to feel more like 100 by the final rep. Sets that stretch past 15 reps, though, have one major drawback: The amount of weight you can handle isn't heavy enough to recruit fast-twitch type-2 muscle fibers.