Question 246217
A scalene triangle has three unequal sides. The perimeter of a scalene triangle is 144 m. If the first side is twice as long as the second side and the third
side is 24 m longer than the second side, then what are the measures of the sides? 


Let x be the second side of the triangle above. Then the first side is 2*x and the third side is x + 24. 

The perimeter is 144 = x + (2*x)+ (x+24)

Solve for x then substitute x for into 2*x and x+24 for the other sides.