Are there different choices for the answer? You did not list any equations to choose from
Answer:
x 
12
[12,∞]
Step-by-step explanation:
The simplest symmetry<span> is Reflection </span>Symmetry<span> (sometimes called </span>Line Symmetry<span> or Mirror </span>Symmetry<span>). It is easy to see, because one half is the reflection of the other half.</span>
Well, the midpoint simply means the point right half-way between both endpoints, thus is just half that or ab = 23.8/2.
