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Mindmaps: Lines and Angles | Maths Olympiad Class 6

The document Mindmaps: Lines and Angles | Maths Olympiad Class 6 is a part of the Class 6 Course Maths Olympiad Class 6.
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FAQs on Mindmaps: Lines and Angles - Maths Olympiad Class 6

1. What are lines and angles in geometry?
Ans.Lines are straight paths that extend infinitely in both directions and have no endpoints. Angles are formed when two lines meet at a point, creating a space between them. The measurement of this space is expressed in degrees.
2. How do you classify angles?
Ans.Angles can be classified based on their measurements. They can be acute (less than 90 degrees), right (exactly 90 degrees), obtuse (greater than 90 degrees but less than 180 degrees), straight (exactly 180 degrees), and reflex angles (greater than 180 degrees).
3. What is the sum of angles in a triangle?
Ans.The sum of the internal angles in a triangle is always 180 degrees. This means that if you know the measure of any two angles in a triangle, you can find the third angle by subtracting the sum of the known angles from 180 degrees.
4. What are complementary and supplementary angles?
Ans.Complementary angles are two angles that add up to 90 degrees, while supplementary angles are two angles that add up to 180 degrees. Understanding these concepts is essential in solving various geometrical problems.
5. How can we use a protractor to measure angles?
Ans.To measure angles using a protractor, place the center hole of the protractor over the vertex of the angle. Align one side of the angle with the zero line of the protractor. Then, read the number on the protractor where the other side of the angle crosses the scale. This gives you the measurement of the angle in degrees.
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