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 question answer
Class 6 NCERT Ganita Prakash Chapter 2 Lines and Angles
To name an angle, identify three points: one on each arm and the vertex. The vertex, where the arms meet, is always the middle letter, like ∠ABC or ∠CBA, ensuring consistency and clarity. For instance, ∠ABC has B as the vertex, and AB and BC are its arms. Naming angles this way avoids confusion in diagrams with multiple angles and ensures proper reference during measurements or constructions.
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