Question: what are sets in squats?
Answer: When you see something written as 3×8, or 10×3, or 5×5, it's usually read as sets multiplied by reps. So 3×8 means 3 sets of 8 reps. 10×3 means 10 sets of 3 reps, etc. In this case, you're doing squats for 3 sets of 6 to 8 reps.