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

Answer:

No

Step-by-step 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,

$1 + 2 = 3 \ngtr 5$

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