The calculated length of the midsegment is 5 units
How to determine the length of the midsegment
From the question, we have the following parameters that can be used in our computation:
The line segment SQ
Where
The point R is the midpoint
This means that
SR = RQ
So, we have
x + 2 = 3x - 4
Collect the like terms
3x - x = 2 + 4
2x = 6
Evaluate
x = 3
The length of the midsegment is then calculated as
SR = x + 2
SR = 3 + 2
SR = 5
Hence, the length of the midsegment is 5 units