Answer:
yes
Step-by-step explanation:
For the lengths given to form a triangle, then the sum of any 2 sides must be greater than the measure of the third side.
4 + 5 = 9 > 8
4 + 8 = 12 > 5
5 + 8 = 13 > 4
The inequality theorem is true thus the 3 lengths form a triangle.
