On a photograph of a triangular piece of land, the lengths of the three sides are 4 cm, 7 cm, 9 cm, respectively. The shortest side of the actual…

On a photograph of a triangular piece of land, the lengths of the three sides are 4 cm, 7 cm, 9 cm, respectively. The shortest side of the actual piece of land is 120 m long. Find the length of the other two sides? What is the longest side and what is the medium size?