An angle is named using three points on its arms, with the vertex as the middle letter, such as ∠ABC. The vertex is central because it connects the arms, ensuring clarity in naming. Class 6 Mathematics Chapter 2 Lines and Angles ...
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A ray starts at a point and extends infinitely in one direction, like AB. Unlike a line segment, a ray has only one endpoint and no fixed length, representing partial infinity. Class 6 Mathematics Chapter 2 Lines and Angles question answer Class ...
Align the protractor’s center with the angle’s vertex. Ensure one arm aligns with the 0° mark. Locate the other arm on the scale, read the degree measurement, and record the angle. Class 6 NCERT Ganita Prakash Chapter 2 Lines and Angles class ...
Angles are classified as acute (<90°), right (90°), obtuse (90°–180°), straight (180°), and reflex (>180° but <360°). Each type reflects a specific range of rotation between the angle’s arms. Class 6 NCERT Ganita Prakash Chapter 2 Lines and Angles class 6 Mathematics ...
An angle is formed by two rays sharing a common endpoint. The rays are called arms, and the common point is called the vertex. For example, ∠ABC has arms BA and BC with vertex B. Class 6 NCERT Ganita Prakash Chapter ...