Question

Two sides of a triangle are 5 cm and 4 cm . Find the third side.​

Answer 1

$\color{purple} {Answer}$

Let ABC a triangle and

• let a = 5

• let b = 4cm

• and let third side be c.

Then we must have a + b > c.

i.e 5cm + 4cm > c = c < 9cm

$\rightarrow$ Now visible values of c are 1 cm , 2cm , 3cm , 4cm , 5cm, 6cm ,7cm , 8cm.

$\rightarrow$but,if c = 1cm means that b + c = a

$\rightarrow$ let's not consider c = 1 cm

$\therefore$ possible values for c are 2cm, 3cm, 4cm , 5cm , 6cm , 7cm , 8cm