Question

if the perimeter and base of an isosceles triangle are 10 cm and 4 cm respectively then its area is​

Answer 1

a+b>c and

c+b>a and

c+a>b

In this case 4+4=8<10

So, the third side of 4 cm will not possible.

Case 2:

Let third side be 10 cm

10+4=14>10 and

10+10=20>10

Therefore, 10 cm is the third side.