Question

the triangle has length 4 cm and 5 cm , the length of 3rd side must be less than ____​

Answer 1

If the sides of a triangle are 3 cm, 4 cm, and 5 cm, then it is a right angled triangle, since they are Pythagorean triplets.

Answer 2

Answer:

the triangle has length 4 cm and 5 cm , the length of 3rd side must be less than 9cm

Step-by-step explanation:

We know that a ∆'s third side must be shorter than thhe sum of two other sides

therefore, two sides 4+5 = 9cm it must be smaller than 9cm.