Tristin S. answered • 03/09/21
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In this set of triangles, the 13ft side of ABC seems to correspond to the 26 ft side of KLM. This would imply that, since the triangles are similar and corresponding side lengths are proportional, that every side of KLM is double the length of its corresponding side on ABC. Since every side length on KLM is double that of ABC, that would mean the perimeter is of KLM is also double that of ABC. The perimeter of ABC is 13 ft + 15 ft + 17ft = 45ft, which would imply the perimeter of KLM is 2*45ft = 90 ft.
