Draw and label a line segment, JK, that is 3 inches long. use a ruler to draw and label midpoint M of the segment.

Answer:
The construct of midpoint is shown below.
Step-by-step explanation:
First we need to draw a line segment, JK, that is 3 inches long.
A midpoint of a line segment divides the line segments in two equal parts.
It is given that M is the midpoint of segment JK. It means
[tex]JM=MK[/tex]
M divides the segment JK in two equal parts. So, the length of each part is 1.5.
[tex]JM=MK=\frac{3}{2}=1.5[/tex]
Now, using scale mark a point M on the line segment, which is 1.5 inches away from J and K.