4sides of a octagon each measure 12 cm, the perimeter of the octagon is 70 cm, what is the length of each remaining, if each remaining side has the same length? .

If there are 8 sides to an octagon, that means that there are 4 equal sides remaining. First, we would subtract 70-12=58. 58 is the total perimeter of the four equal sides remaining. We would then divide 58 by 4 to find the length of each side. You should be able to finish this off. I hope this helped!!!