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 ...
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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 ...
A line segment is the shortest path between two endpoints, like AB. A line extends infinitely in both directions without endpoints, whereas a line segment is fixed between two points. Class 6 NCERT Ganita Prakash Chapter 2 Lines and Angles class 6 ...
A point indicates a precise location with no length, width, or height. Examples include the tip of a needle, the sharpened end of a pencil, and the pointed end of a compass. Class 6 NCERT Ganita Prakash Chapter 2 Lines and ...
The angle is less than 18°. Doubling, tripling, or quadrupling the angle must keep it below 90°. However, multiplying by 5 must exceed 90° but stay below 180°, so possible measures are 1°–17°. class 6 Mathematics Textbook Chapter 2 question answer class ...
The angle between two spokes is 360° ÷ 24 = 15°. The largest acute angle is 90°, formed by six consecutive 15° segments. The Ashoka Chakra demonstrates equal angular divisions in a circle. class 6 Mathematics Textbook Chapter 2 question answer class ...
To draw these angles, use a protractor. Align the baseline with one arm of the angle, mark the required degrees (140°, 82°, 195°, 70°, 35°), and join the vertex with the marked point. class 6 Mathematics Textbook Chapter 2 question answer class ...
Given ∠TER = 80° and ∠REB = 180° (straight angle), calculate ∠BET = 180° − 80° = 100°. Similarly, ∠SET = ∠TER = 80°, as they are complementary to the straight line. class 6 Mathematics Textbook Chapter 2 question answer class 6 ...