Acute angles are less than 90° (e.g., 45°), obtuse angles range between 90° and 180° (e.g., 120°), and reflex angles exceed 180° but are less than 360° (e.g., 270°).
Class 6 Mathematics Ganita Prakash Lines and Angles
Class 6 Mathematics Chapter 2 Lines and Angles question answer
Angles are categorized based on their measure:
1. Acute angles are smaller than 90°, such as 30° or 45°, appearing in triangles and sharp turns.
2. Obtuse angles range between 90° and 180°, like 120°, seen in polygons and wide openings.
3. Reflex angles measure more than 180° but less than 360°, such as 270°, often seen in rotations or circular motions.
These classifications provide clarity in geometry, aiding in understanding shapes and their properties.
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