Question

The length of two sides of a triangle are 12 cm and 15 cm. Between what two measures should be
the lenght of the third side fall?​

Answer 1

Step-by-step explanation:

Let AB,BC and CA are the sides of triangle ABC

Given that,

Let AB=15cm,BC=12cm and Third side CA=?

Then, We know that

CA=AB−BC

CA=15−12

CA=3cm.

And

CA=AB+BC

CA=15+12

CA=27cm.

So the third side CA must lie between 3<CA<27cm.

Answer 2

Let AB,BC and CA are the sides of triangle ABC
Given that,
Let AB=15cm,BC=12cm and Third side CA=?

Then, We know that
CA=AB−BC
CA=15−12
CA=3cm.

And
CA=AB+BC
CA=15+12
CA=27cm.

So the third side CA must lie between 3
Hence, this is the answer.