\(\) Definitions A midpoint of a line segment is the point that divides the segment into two segments that have the same length A segment bisector is a line, ray, or other figure that passes through the midpoint. Acute: \(0^\circ < m\angle A< 90^\circ\) Right: \(m\angle A= 90^\circ\) Obtuse: \(90^\circ < m\angle A< 180^\circ\) Straight: \(m\angle A= 180^\circ\) An angle is a figure formed by two rays with the same endpoint. The common endpoint of an angle is the vertex. An Angle Bisector is a ray that divides an angle into two angles that both have the same measure A vector is a quantity that has both direction and magnitude The initial point of a vector is the starting point The terminal point of a vector is the ending point. Perpendicular lines are lines that intersect at right angles. The perpendicular bisector of a line segment is a line perpendicular «read more»