Answer:
13 cm < x < 21 cm
Step-by-step explanation:
The triangle inequality theorem tells us that if we are given two sides' length of a triangle, a and b (where a < b), and the third side is "x", we can say:
b - a < x < a + b
So, the third side's length would be between the difference and sum of the other two sides given.
Let the third side be "x"
and b = 17, and a = 4
So, we can write:
[tex]b - a < x < a + b\\17-4<x<4+17\\13<x<21[/tex]
The third side (x) length will be between 13 centimeters and 21 centimeters
