The length of a rectangle is 4 cm less then twice it’s width the perimeter of the rectangle is 34 cm. what are the dimensions of the rectangle

The lengths are 10 and the widthes are 7

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)