A triangle har a perimetr of 239cm. If the 2nd side is thrice the length of the 1st side and the 3rd side is 6 less than the 2nd side. Find the length of all sides. 1st side =

Yulia 2020-11-26 Answered
A triangle har a perimetr of 239cm. If the 2nd side is thrice the length of the 1st side and the 3rd side is 6 less than the 2nd side. Find the length of all sides. 1st side =
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Jayden-James Duffy
Answered 2020-11-27 Author has 91 answers
Let x be the length of the 1st side so that 3x is the length of the 2nd side and 3x63x6 is the length of the 3rd side. The perimeter is 239 cm so we can write:
x+3x+(3x6)=239
Solve for x:
7x6=239
x=35
So, the 1st side measures 35 cm, the 2nd side measures 3(35)=105cm, and the 3rd side measures 3(35)6=99cm.
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