Question

If two sides of an isosceles $\Delta$ are $3$ cm and $8$ cm, then the length of the third side is :

• A. $3$ cm
• B. $8$ cm
• C. $3$ cm or $8$ cm
• D. none

Answer 1

The correct option is B $8$ cm

Length of the third side should be $8$ cm.

Because if we take third side as $3cm,$ then the sum of two sides $3$ cm $+3$ cm $=6$ cm is less than third side$\left(8\right)$ cm.

So, only $B$ is correct.