Yes, a door’s opening can be expressed using angles. The hinge serves as the vertex, while the door’s edge and frame are the arms. The angle shows how far the door is opened. Class 6 Mathematics Ganita Prakash Lines and Angles 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 ...
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 ...
In Class 6 Math, “Lines and Angles” introduces basic geometric concepts. It covers points, lines, rays, line segments, and different types of angles such as acute, right, obtuse, and reflex angles, and their properties. Class 6 NCERT Ganita Prakash Chapter 2 ...
A reflex angle is greater than 180° but less than 360°. Examples in real life include the rotation of clock hands past 180°, a full swing in motion, or rotating objects like windmills. Class 6 Mathematics Ganita Prakash Lines and Angles Class ...