Lengths of sides are 2 cm, 3 cm and 7 cm.
A triangle can be drawn only when the sum of any two sides is greater than the third side.
So, let’s check the rule.
2 + 3 > 7 or 2 + 3 < 7
2 + 7 > 3 and 3 + 7 > 2
Here 2 + 3 >7
So, the triangle does not exit.