if a triangle has a perimeter of 50cm one side is double the length of the base and the second side is four less than three times the base how long is the base?
base ---- x
one other side ---- 2x
2nd side ----- 3x-4
solve:
x + 2x + 3x-4 = 50
one other side ---- 2x
2nd side ----- 3x-4
solve:
x + 2x + 3x-4 = 50