Respuesta :
Answer:
18 cm is the answer.
Step-by-step explanation:
We know by triangle inequality theorem that “The sum of any two sides of a triangle should be greater than the third side”.
Herr, 2 sides are given as 7 cm and 15 cm.
Let the third side of a triangle be x
According to the above statement:
[tex]7+15>18[/tex]
[tex]15+18>7[/tex]
[tex]7+18>15[/tex]
Now, we can see that the length of the third side must lie between 1 cm and 18 cm to form a triangle if 7 cm and 15 cm are its other two sides.
So, the answer is 18 cm.
