Maths - Geometry Definitions
Geometry Definitions What is a point? Answer: A point represents an exact position in space. It has no size. Example: A dot marked on paper is called point A. What is a line? Answer: A line is a straight path that extends endlessly in both directions. Example: The edge of a ruler represents a line. What is a line segment? Answer: A line segment is a part of a line with two fixed endpoints. Example: The line joining points A and B is written as AB. What is a ray? Answer: A ray starts at one point and extends infinitely in one direction. Example: Sunlight coming from the sun can be thought of as rays. What is an angle? Answer: An angle is formed when two rays meet at a common point (vertex). Example: The corner of a book forms an angle. What are the types of angles? Answer: Acute angle: less than 90° (e.g., 45°) Right angle: exactly 90° Obtuse angle: more than 90° but less than 180° (e.g., 120°) Straight angle: exactly 180° What is a triangle? Answer...