Clock hands create angles like 30° (1 o’clock), 90° (3 o’clock), and 210° (7 o’clock). Acute angles are under 90°, obtuse angles range from 90° to 180°, and reflex angles exceed 180°. Class 6 Mathematics Ganita Prakash Lines and Angles Class 6 ...
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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 ...
Measure each angle with a protractor. Classify ∠PTR, ∠PTQ, and ∠WTP as acute (<90°), obtuse (90°–180°), right (90°), or reflex (>180°) based on their measurements. Record results for accuracy. Class 6 NCERT Ganita Prakash Chapter 2 Lines and Angles class 6 Mathematics ...
A 360° rotation represents a full circle, returning to the original position. It is fundamental in geometry for understanding circular motion, rotations of objects, and in calculating angles around a point or center. Class 6 NCERT Ganita Prakash Chapter 2 Lines ...
The size of an angle affects the shape and classification of geometric figures. For example, in triangles, the angles determine if it’s acute, obtuse, or right, influencing the figure’s properties, like congruency or symmetry. Class 6 Mathematics Ganita Prakash Lines and ...
Angles are classified as acute (<90°), right (90°), obtuse (90°–180°), straight (180°), and reflex (>180° but <360°). Examples include a 45° acute angle, a 120° obtuse angle, and a 270° reflex angle. class 6 Mathematics Textbook Chapter 2 question answer class 6 ...
Dividing a circle into equal parts yields angles based on the formula 360°/n. For 1, 2, 3, 4, 5, 6, 8, 9, 10, and 12 parts, the angles are 360°, 180°, 120°, 90°, etc. Class 6 NCERT Ganita Prakash Chapter 2 ...
The two angles are equal if their degree measurements match. Superimposition aligns their vertices and one arm to confirm equality. Folding paper through the angle’s vertex replicates this process visually and effectively. Class 6 Mathematics Ganita Prakash Lines and Angles Class 6 ...
Four points, A, B, C, D, yield six lines: AB, AC, AD, BC, BD, CD. These lines form twelve angles: ∠ABC, ∠ABD, ∠ACD, ∠BCD, ∠CAB, ∠DAB, ∠BCA, ∠CBA, ∠DAC, ∠CDB, ∠ADB, and ∠BDA. Class 6 NCERT Ganita Prakash Chapter 2 Lines ...
The rays in Fig. 2.5 are TA and TB. Point T serves as the starting point for both rays, as rays originate from a specific point and extend infinitely in one direction. Class 6 Mathematics Ganita Prakash Lines and Angles Class 6 ...