Geometric Constructions

An angle bisector is a line or ray that divides an angle into two equal parts.

A perpendicular bisector is a line that divides a segment into two equal parts at a 90-degree angle.

To bisect a segment means to divide it into two equal parts.

To construct a parallel line to a point not on the line, use a straightedge and compass to create a line that never intersects the original line.

Corresponding angles are angles that are in the same position on two different parallel lines cut by a transversal.

An altitude is a perpendicular segment from a vertex to the opposite side, used to find the height of the triangle.

Congruent angles are angles that have the same measure.

To construct the bisector of a given angle, use a compass to draw arcs from the angle's vertex, then connect the intersection points to the vertex.

The midpoint is the point that divides a segment into two equal lengths.

Two lines are perpendicular if they intersect at a right angle (90 degrees).