# In ∆ABC, AB=2.5cm

It is given in the question that,

In

AB = 2.5 cm

BC = 6 cm

We know that, the length of a side must be less than the sum of the other two sides

Let us assume the side of AC be x cm

x < 2.5 + 6

x < 8.5

Also, we know that the length of a side must be greater then the difference between the other two sides

x > 6 – 2.5

x > 3.5

Hence, the limits of the value of x is

3.5 < x < 8.5

It is clear the length of AC cannot be 3.4 cm

Hence, option (A) is correct

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