Class 9 > Mathematics (Maths) Class 9 > What is an Angle?
What is an Angle? Video Lecture - Mathematics (Maths) Class 9
|
42 videos|378 docs|65 tests
|
FAQs on What is an Angle? Video Lecture - Mathematics (Maths) Class 9
| 1. What is an angle? |  |
Ans. An angle is a geometric figure formed by two rays or lines that have a common endpoint called the vertex. It is usually measured in degrees or radians and represents the amount of rotation needed to bring one line into coincidence with the other.
| 2. How do you measure an angle? | |
Ans. Angles are measured using a protractor. To measure an angle, place the center of the protractor on the vertex of the angle. Then, align one side of the angle with the zero-degree mark on the protractor. Finally, read the measurement where the other side of the angle intersects the protractor.
| 3. What are the different types of angles? | |
Ans. There are several types of angles, including:
- Acute angle: An angle that measures less than 90 degrees.
- Right angle: An angle that measures exactly 90 degrees.
- Obtuse angle: An angle that measures greater than 90 degrees but less than 180 degrees.
- Straight angle: An angle that measures exactly 180 degrees.
- Reflex angle: An angle that measures greater than 180 degrees but less than 360 degrees.
| 4. How do you classify angles based on their measurements? | |
Ans. Angles can be classified into different categories based on their measurements. Here are some common classifications:
- Acute angle: Measures less than 90 degrees.
- Right angle: Measures exactly 90 degrees.
- Obtuse angle: Measures between 90 and 180 degrees.
- Straight angle: Measures exactly 180 degrees.
- Reflex angle: Measures between 180 and 360 degrees.
- Full angle: Measures exactly 360 degrees.
| 5. What is the difference between an acute angle and an obtuse angle? | |
Ans. The main difference between an acute angle and an obtuse angle is their measurements. An acute angle measures less than 90 degrees, while an obtuse angle measures greater than 90 degrees but less than 180 degrees. In simpler terms, an acute angle is "smaller" or "sharper" than a right angle (90 degrees), while an obtuse angle is "larger" or "more open" than a right angle.
About this Video
|
3.8K Views |
|
4.71/5 Rating |
|
Indu Gupta |
Video Description: What is an Angle? for Class 9 2023 is part of Mathematics (Maths) Class 9 preparation.
The notes and questions for What is an Angle? have been prepared according to the Class 9 exam syllabus.
Information about What is an Angle? covers all important topics for Class 9 2023 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for What is an Angle?.
Introduction of What is an Angle? in English is available as part of our Mathematics (Maths) Class 9 for Class 9 & What is an Angle? in
Hindi for Mathematics (Maths) Class 9 course. Download more important topics related with notes, lectures and mock test series for
Class 9 Exam by signing up for free.
Description
Video Lecture & Questions for What is an Angle? Video Lecture | Mathematics (Maths) Class 9 - Class 9 full syllabus preparation | Free video for Class 9 exam to prepare for Mathematics (Maths) Class 9.
Information about What is an Angle?
Here you can find the meaning of What is an Angle? defined & explained in the simplest way possible.
Besides explaining types of What is an Angle? theory, EduRev gives you an ample number of questions to practice What is an Angle? tests,
examples and also practice Class 9 tests.
|
42 videos|378 docs|65 tests
|
Timeline
| 00:03 | What are Angles? |
| 00:31 | Arms of an Angle |
| 00:40 | Question 1 |
| 00:54 | Vertex of an Angle |
| 01:06 | Angles in everyday life |
More
|
|
|
Explore Courses for Class 9 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Download free EduRev App
Track your progress, build streaks, highlight & save important lessons and more!
Related Searches
What is an Angle? Video Lecture | Mathematics (Maths) Class 9
,video lectures
,ppt
,Free
,What is an Angle? Video Lecture | Mathematics (Maths) Class 9
,Semester Notes
,Viva Questions
,Sample Paper
,Summary
,Important questions
,practice quizzes
,study material
,Exam
,shortcuts and tricks
,Extra Questions
,Previous Year Questions with Solutions
,Objective type Questions
,past year papers
,MCQs
,What is an Angle? Video Lecture | Mathematics (Maths) Class 9
,mock tests for examination
;
Study What is an Angle? on the App
Students of Class 9 can study What is an Angle? alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the What is an Angle?,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of What is an Angle? is prepared as per the latest Class 9 syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup
