#### Chapters

Chapter 2: Polynomials

Chapter 3: Coordinate Geometry

Chapter 4: Linear Equations in two Variables

Chapter 5: Introduction to Euclid's Geometry

Chapter 6: Lines and Angles

Chapter 7: Triangles

Chapter 8: Quadrilaterals

Chapter 9: Areas of Parallelograms and Triangles

Chapter 10: Circles

▶ Chapter 11: Constructions

Chapter 12: Heron's Formula

Chapter 13: Surface Area and Volumes

Chapter 14: Statistics

Chapter 15: Probability

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## Solutions for Chapter 11: Constructions

Below listed, you can find solutions for Chapter 11 of CBSE NCERT for Mathematics Class 9.

### NCERT solutions for Mathematics Class 9 Chapter 11 Constructions Exercise 11.1 [Page 191]

Construct an angle of 90° at the initial point of a given ray and justify the construction.

Construct an angle of 45° at the initial point of a given ray and justify the construction.

Construct the angles of the following measurement:- 30°

Construct the angles of the following measurement:- `22 1/2^@`

Construct the angles of the following measurement:- 15°

Construct the 75° angles and verify by measuring it by a protractor.

Construct the 105° angles and verify by measuring it by a protractor.

Construct the 135° angles and verify by measuring it by a protractor.

Construct an equilateral triangle, given its side and justify the construction.

### NCERT solutions for Mathematics Class 9 Chapter 11 Constructions Exercise 11.2 [Page 195]

Construct a triangle ABC in which BC = 7 cm, ∠B = 75° and AB + AC = 13 cm.

Construct a triangle ABC in which BC = 8 cm, ∠B = 45° and AB − AC = 3.5 cm.

Construct a triangle PQR in which QR = 6 cm, ∠Q = 60° and PR − PQ = 2 cm

Construct a triangle XYZ in which ∠Y = 30°, ∠Z = 90° and XY + YZ + ZX = 11 cm.

Construct a right triangle whose base is 12 cm and sum of its hypotenuse and other side is 18 cm.

## Solutions for Chapter 11: Constructions

## NCERT solutions for Mathematics Class 9 chapter 11 - Constructions

Shaalaa.com has the CBSE Mathematics Mathematics Class 9 CBSE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Mathematics Class 9 CBSE 11 (Constructions) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.

Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. NCERT textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.

Concepts covered in Mathematics Class 9 chapter 11 Constructions are Introduction of Constructions, Basic Constructions, Some Constructions of Triangles.

Using NCERT Mathematics Class 9 solutions Constructions exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in NCERT Solutions are essential questions that can be asked in the final exam. Maximum CBSE Mathematics Class 9 students prefer NCERT Textbook Solutions to score more in exams.

Get the free view of Chapter 11, Constructions Mathematics Class 9 additional questions for Mathematics Mathematics Class 9 CBSE, and you can use Shaalaa.com to keep it handy for your exam preparation.