Lines, Segments and Angle Measurements Definition of a line: A line is a continuous path of points that can be drawn from one point to another. Defini...
Lines, Segments and Angle Measurements
Definition of a line: A line is a continuous path of points that can be drawn from one point to another.
Definition of a segment: A segment is a portion of a line that has a fixed length.
Definition of an angle: An angle is the measure of the angle formed between two lines at a point.
Measurement of angles:
Acute angle: An angle that measures less than 90°.
Right angle: An angle that measures exactly 90°.
Obtuse angle: An angle that measures greater than 90°.
Properties of lines, segments and angles:
Lines: Lines can be intersected (meet at a point), perpendicular (at right angles), or coincident (parallel but not intersecting).
Segments: Segments have a fixed length and are always less than a line.
Angles: Angles can be added, subtracted, or equal. The sum of the angles in a triangle is always 180°.
Examples:
A line segment is a path from point A to point B, with a fixed length.
An angle is formed between two lines at point C, with angles measuring 45°.
A line can intersect two other lines, forming various angles and segments