There is no necessary relationship between linear feet and square feet.
To answer the question, you need to know what it is you are measuring linear feet of. You may need to calculate how many square feet per linear foot you have, then multiply by the 10 linear feet.
To answer the question, you need to know what it is you are measuring linear feet of. You may need to calculate how many square feet per linear foot you have, then multiply by the 10 linear feet.