Answer:
2 < s < 18
Step-by-step explanation:
If we know 2 sides of a triangle to be A & B and let the third side be C, the triangle inequality theorem tells us:
A - B < C < A + B
This means that the third side can take values between the sum and difference of the lengths of the other 2 sides.
So simply, we have
10 - 8 = 2
and
10 + 8 = 18
Hence, the third side can have lengths between 2 and 18
Let third side be s, so we can write:
2 < s < 18
