Answer:
The length of the sides are 42m, 31.5m and 24.5m
Step-by-step explanation:
The perimeter of a plain shape can be computed by adding all the sides of the plain shape.
For a triangle, the perimeter is the sum of the 3 sides.
Let the length of the shortest side be x
The longest side = 2x - 7 meters
The middle side = x +7 meters
Therefore,
2x - 7 +x - 7 + x = 84
4x = 84 + 14
4x = 98
x = 24.5 meters
The longest side = 2(24.5) - 7 = 42 meters
The middle side = 24.5 + 7 = 31.5 meters
The length of the sides are 42m, 31.5m and 24.5m
