Answer:
45, 60, 72
Step-by-step explanation:
use the Triangle Inequality Theorem which states that the sum of any two sides must be greater than the third side
20 + x > 55 This tells us that the minimum value of the third side
x > 35 must be 36
20 + 55 > x This tells us that the maximum value of the third side
75 > x must be 74 or less
The third side must be greater than or equal to 36 and less than or equal to 74
