NCERT Solutions Class 9 Mathematics Chapter 11 Constructions Download In Pdf

Chapter 11 Constructions Download in Pdf

EXERCISE 11.1

**Question 1.** Construct an angle of 900 at the initial point of a given ray and justify the construction.

**Question 2.** Construct an angle of 450 at the initial point of a given ray and justify the construction.

**
Question 3.** Construct the angles of the following measurements:

(i) 30°

(ii) 22 1 2 °

(iii) 15°

** Question 4.** Construct the following angles and verify by measuring them by a protractor:

(i) 75°

(ii) 105°

(iii) 135°

**Question 5.** Construct an equilateral triangle, given its side and justify the construction.

EXERCISE 11.2

** Question 1**. Construct a triangle ABC in which BC = 7cm, ∠B = 75° and AB + AC = 13 cm.

** Question 2.** Construct a triangle ABC in which BC = 8cm, ∠B = 45° and AB – AC = 3.5 cm.

** Question 3. **Construct a triangle PQR in which QR = 6cm, ∠Q = 60° and PR – PQ = 2cm.

** Question 4.** Construct a triangle XYZ in which ∠Y = 30°, ∠Z = 90° and XY + YZ + ZX = 11 cm.

** Question 5.** Construct a right triangle whose base is 12cm and sum of its hypotenuse and other
side is 18 cm.

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- Chapter 3 Coordinate Geometry
- Chapter 4 Linear Equations In Two Variables
- 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 Areas and Volumes
- Chapter 14 Statistics
- Chapter 15 Probability

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