The perimeter of a 6-sided figure is 67.74 meters. Two of the sides have the same length. The sum of the other 4 side lengths is 36.4 meters. About how long is each of the same-side lengths? Explain how to decide. First, subtract 67.7436.4 31.34 nothing meters. Then, round 31.34 nothing to the nearest whole number to get 30 nothing and divide by 2. Each same-side length is about 11415 nothing meters.