a ray that divides an angle into 2 congruent coplanar angles
angle bisector
two lines that intersect to form right angles
perpendicular lines
use a straightedge and a compass to draw a geometric figure
construction
of a segment is a line,segment,or ray that is perpendicular to the segment at its midpoint,thereby bisecting the segment into 2 congruent segments
perpendicular bisector
a geometric tool used to draw circles
compass
a ruler with no markings
starightedge