SOLUTION: 12. The lengths of the sides of a triangle total 13.6 meters. One side measures 3.4 meters. The other two sides are the same length. What is the length of each of the other two sid

Question 348053: 12. The lengths of the sides of a triangle total 13.6 meters. One side measures 3.4 meters. The other two sides are the same length. What is the length of each of the other two sides?
A. 5.1 m
B. 8.5 m
C. 10.2 m
D. 11.9 m
Answer by lunaclock(3) (Show Source): You can put this solution on YOUR website!
Hi..I am not a tutor, don't slap me if I did't clearly explain the problem...

13.6 meters - 3.4 meters = 10.2 meters
The sum of the three sides of the triangle, minus one side of the triangle, equals to the sum of the other two sides of the triangle.
Now we know the rest of the two sides are equal, so simply...
10.2 meters / 2 = 5.1 meters
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Or if you want it be this way
n+n=10.2
(let n= one unknown side of the triangle, the problem said that the two unknown sides are equal, so n+n)
2x=10.2
x=10.2/2
x=5.1 meters
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Ooorrr
n(side1)+n(side2)+3.4(side3)=13.6(sum of three sides)
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Hope this confused you.
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