Question

two sides of a triangle are 12cm and 7 CM .if the third side is an integer ,then the sum of all the values of the third side is,

Answer 1

Step-by-step explanation:

A triangle  ABC has 3 sides and they have to satisfy the following.

 

     | a - b |  <  c < (a+b) 

 length of a side must be less the sum of the other two and more than the difference between the other two.

Hence,  the third side,  has to be more than  (15-12) = 3 cm.   Also it has to be less than (15+12) = 27 cm.     It is in between  3 cm and 27 cm

Answer 2

I don't know whether the answer is correct.But I will write the answer I know:

Let 'x' be the unknown third number

12 + 7 = x

x =  12 - 7 = 5

Therefore, the third side is 5