Answer:
Geometry construction of lines
Step-by-step explanation: For Pic 1, draw an horizontal line and label P-----Q------R
For Pic 2, draw an isosceles triangle, label horizontal line D--------E------------R and label S at the vertex of the triangle.
For Pic 3, draw horizontal line, then draw vertical line at the middle of the horizontal line and label it R.
For Pic 4, do same as Pic 3, but label it P
For Pic 5, draw horizontal line, label it AB, then draw a vertical, thereby bisecting the horizontal line.
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