Class 9 Exam  >  Class 9 Videos  >  Mathematics (Maths) Class 9  >  Theorems Related to Chords of a Circle

Theorems Related to Chords of a Circle Video Lecture | Mathematics (Maths) Class 9

44 videos|412 docs|55 tests

Top Courses for Class 9

FAQs on Theorems Related to Chords of a Circle Video Lecture - Mathematics (Maths) Class 9

1. What are the properties of a chord in a circle?
Ans. A chord in a circle is a line segment that joins two points on the circumference of the circle. The properties of a chord are: - The perpendicular bisector of a chord passes through the center of the circle. - The chords that are equidistant from the center of the circle are equal in length. - The longest chord in a circle is the diameter, which passes through the center of the circle.
2. How can we find the length of a chord in a circle?
Ans. To find the length of a chord in a circle, we can use the following formula: Length of the chord = 2 * √(r^2 - d^2) where r is the radius of the circle and d is the perpendicular distance between the chord and the center of the circle.
3. What is the relationship between the angle subtended by a chord and its corresponding arc?
Ans. The angle subtended by a chord at the center of a circle is double the angle subtended by the same chord at any point on the circumference of the circle. In other words, if an arc is formed by a chord, the angle subtended by the chord at the center of the circle is twice the angle subtended by the same chord at any point on the circumference.
4. Can a circle have more than one chord with the same length?
Ans. Yes, a circle can have more than one chord with the same length. In fact, if two chords are equidistant from the center of the circle, they will be of equal length. Additionally, if a chord is perpendicular to the diameter of a circle, it will be the shortest possible chord and any other chord parallel to it will have the same length.
5. What is the significance of the perpendicular bisector of a chord in a circle?
Ans. The perpendicular bisector of a chord in a circle passes through the center of the circle. This property is significant because it allows us to find the center of the circle when the endpoints of the chord are known. It also helps in constructing and identifying congruent chords in a circle.
44 videos|412 docs|55 tests
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.
10M+ students study on EduRev
Related Searches

Previous Year Questions with Solutions

,

mock tests for examination

,

past year papers

,

Summary

,

ppt

,

Viva Questions

,

Theorems Related to Chords of a Circle Video Lecture | Mathematics (Maths) Class 9

,

Theorems Related to Chords of a Circle Video Lecture | Mathematics (Maths) Class 9

,

Semester Notes

,

Free

,

MCQs

,

Important questions

,

Exam

,

shortcuts and tricks

,

Objective type Questions

,

Theorems Related to Chords of a Circle Video Lecture | Mathematics (Maths) Class 9

,

Sample Paper

,

Extra Questions

,

video lectures

,

study material

,

practice quizzes

,

pdf

;