https://www.sciencing.com/bisect-angle-using-only-ruler-6390598/
How To Bisect An Angle Using Only A Ruler
Mar 24, 2022 - To "bisect" an angle means to split it in half, or to find its middle point. Using only a ruler and pencil, you can easily bisect the angle formed where the...
bisect an anglehow tousingruler