The perimeter of the ABC triangle is 17/20 m. The AB side is 17/50 m

The perimeter of the ABC triangle is 17/20 m. The AB side is 17/50 m, and the BC side is 9/50 m shorter than AB. Find the side length of the speaker

Since the BC side of the ABC triangle a 9 \ 50 m is shorter than AB, and the AB side is 17 \ 50 m, then the BC side = 17 \ 50 m – 9 \ 50 m = 8 \ 50 m. The perimeter of the triangle is equal to the sum of the lengths of all its sides , that is, P = AB + AC + BC, 17 \ 20 = 17 \ 50+ 8 \ 50 + AC, 17 \ 20 – 25 \ 50 = AC, AC = 17 \ 20-1 / 2, AC = (17- 10) / 20 = 7/20 m.

Answer: the side of the triangle AC = 7/20 m.