Sandra bought 120 square feet of carpet for her room in her house. if the room is a square, what is the side length of each side of the room

√120 ≈ 10.95
and 10.95²≈ 120 
therefore each side of this square room is about 10.95 feet.

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)