points,lines and angles

• An angle is formed by two rays with a common end point called the vertex
• A perpendicular line is at right angles to another line or plane.
• A line is the shortest distance between two points
• A transversal is a straight line that intersects more than one other line.
• When two parallel lines are cut by a transversal, alternate interior angles are congruent.
• A ray is an unbounded part of a line starting from a given point on the line
• It is a slanted four-sided figure plane
• is a subset of a line that has two endpoints.Hence a line segment has a definite length unlike a line which has indefinite length Line segment