1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

RD Sharma - Mathematics

16. Circles

1. Number System
2. Exponents of Real Numbers
3. Rationalisation
4. Algebraic Identities
5. Factorization of Algebraic Expressions
6. Factorization of Polynomials
7. Introduction to Euclid's Geometry
8. Lines and Angles
9. Triangle and Its Angles
10. Congruent Triangles
11. Co-ordinate Geometry
13. Linear Equations in Two Variables
12. Heron's Formula
14. Quadrilaterals
15. Areas of Parallelograms
16. Circles
17. Constructions
18. Surface Area and Volume of a Cuboid and a Cude
19. Surface Area and Volume of a Right Circular Cylinder
20. Surface Area and Volume of a Right Circular Cone
21. Surface Area and Volume of a Sphere
22. Tabular Representation of Statistical Data
23. Graphical Representation of Statistical Data
24. Measures of Central Tendency
25. Probability

Exercise 16.1

Exercise 16.2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Exercise 16.3

Exercise 16.4

1 2 3 4 5 6 7 8 9 10 11

Exercise 16.5

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

CCE - Formative Assessment

1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Q. 7

ABC is a t A. 3 cm

B. 4 cm

C. 5 cm

D. 6 cm

Class 9th RD Sharma - Mathematics 16. Circles

Answer :

Given: AC = radius = 5 cm

AB = 4 cm

DC is a chord passing B and C

In ABC

AC² = AB² + BC²

BC² = 9

BC = 3 cm

CD = 2 BC

= 6 cm

Rate this question :

How useful is this solution?

We strive to provide quality solutions. Please rate us to serve you better.

PREVIOUSOne chord of a ci NEXTIf AB, BC

Related Videos

Tips to Solve RD Sharma Problems Faster

Tips to Solve RD Sharma Problems Faster

Tips to Solve RD Sharma Problems Faster23 mins

Smart Revision | Most Important Questions of Circles

Smart Revision | Most Important Questions of Circles

Smart Revision | Most Important Questions of Circles45 mins

RD Sharma | Extra Qs. of Cyclic Quadrilaterals

RD Sharma | Extra Qs. of Cyclic Quadrilaterals

RD Sharma | Extra Qs. of Cyclic Quadrilaterals31 mins

Smart Revision | World of Circles

Smart Revision | World of Circles

Smart Revision | World of Circles44 mins

NCERT | Imp Qs Discussion on Circles

NCERT | Imp Qs Discussion on Circles

NCERT | Imp Qs Discussion on Circles39 mins

Smart Revision | Chords and Related Concepts

Smart Revision | Chords and Related Concepts

Smart Revision | Chords and Related Concepts42 mins

Let's Solve Good Questions on Circle

Let's Solve Good Questions on Circle

Let's Solve Good Questions on Circle41 mins

Some Imp Concepts Of Circles

Some Imp Concepts Of Circles

Some Imp Concepts Of Circles44 mins

Concept of Cyclic Quadrilateral

Concept of Cyclic Quadrilateral

Concept of Cyclic Quadrilateral61 mins

NCERT | Quiz on Circles

NCERT | Quiz on Circles

NCERT | Quiz on Circles45 mins

Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts

Dedicated counsellor for each student

24X7 Doubt Resolution

Daily Report Card

Detailed Performance Evaluation

caricature

view all courses

RELATED QUESTIONS :

PQ and RQ are theRS Aggarwal & V Aggarwal - Mathematics

In a circle of raRD Sharma - Mathematics

Two equal circlesRD Sharma - Mathematics

Angle formed in mRD Sharma - Mathematics

If AB is aRD Sharma - Mathematics

The greatest chorRD Sharma - Mathematics

If two diameters RD Sharma - Mathematics

<span lang="EN-USRS Aggarwal & V Aggarwal - Mathematics