Answer:
I hope this help! :)
Explanation:
Repetition is repeating a certain exercise. Sets within a workout is how many repeations you do at one time. For example you can do 5 squats, 3 times. The 5 squats are the repeations and the 3 times are the sets. It is important to do reps and sets to build up endurance and gain muscle over time. I hope this helps!