Question

Can 1,2,5 be the lengths of a triangle

Answer 1

No the length of a triangle 2 smaller sides has to be greater than the sum of the other longer side

Answer 2

No

Explanation:

In order to be the lengths of sides of a triangle:

Sum of any two side lengths must always be greater than the third side.

Here,

`1 + 2 = 3 \\gtr 5 \\`

Hence, 1, 2, 5 can't be lengths of triangle.