Class 7 Exam > Class 7 Videos > Mathematics (Maths) Class 7 > Examples: All Angles- 1
Examples: All Angles- 1 Video Lecture | Mathematics (Maths) Class 7
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76 videos|345 docs|39 tests
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FAQs on Examples: All Angles- 1 Video Lecture - Mathematics (Maths) Class 7
| 1. What is the importance of learning all angles in Class 7 mathematics? |  |
Ans. Learning all angles in Class 7 mathematics is important because angles are fundamental concepts in geometry. Understanding angles helps in measuring and comparing the sizes of different geometric figures. It also lays the foundation for advanced topics like trigonometry and calculus.
| 2. How can I identify different types of angles? | |
Ans. Different types of angles can be identified based on their measurements. A right angle measures 90 degrees, an acute angle measures less than 90 degrees, and an obtuse angle measures between 90 and 180 degrees. Additionally, a straight angle measures 180 degrees, and a reflex angle measures more than 180 degrees.
| 3. Can you explain the concept of complementary angles? | |
Ans. Complementary angles are a pair of angles that add up to 90 degrees. In other words, when two angles are adjacent or next to each other, and their measures add up to 90 degrees, they are called complementary angles. For example, if one angle measures 40 degrees, the other angle in the pair would measure 50 degrees to make a total of 90 degrees.
| 4. What are the properties of vertical angles? | |
Ans. Vertical angles are a pair of non-adjacent angles formed by two intersecting lines. The properties of vertical angles are:
- They are always congruent, meaning they have equal measures.
- Each pair of vertical angles is formed by opposite rays.
- The sum of the measures of two adjacent angles always equals 180 degrees.
| 5. How can I calculate the measure of an exterior angle of a triangle? | |
Ans. To calculate the measure of an exterior angle of a triangle, you need to subtract the interior angle of the triangle from 180 degrees. The interior angle is the angle formed between two sides of the triangle. Subtracting it from 180 degrees gives you the measure of the exterior angle.
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Nov 22, 2024 Last updated |
Video Description: Examples: All Angles- 1 for Class 7 2024 is part of Mathematics (Maths) Class 7 preparation.
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