The ratio of the lengths of the three line segments is 1 : 2 : 3. If the sum of their lengths is 12 cm, can these line segments form a triangle?
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Answer:
No, these lines cannot form a triangle
Explanation:
If the ratio is 1:2:3,
then for eg the lengths of sides are 2,4,6 cm respectively.
But According to the first triangle inequality theorem, the lengths of any two sides of a triangle must add up to more than the length of the third side.
So here,
2+4 = 6 = 6
2+6 = 12 > 4
4+6 = 10 > 2
So, no these line segments cannot form a triangle.
I hope this helps:)
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