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Ncert Solutions For Class 9 Maths Chapter 11 Constructions

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Download NCERT Solutions for Class 9 Mathematics

Chapter 11 Constructions

(Link of Pdf file is given below at the end of the Questions List)

In this pdf file you can see answers of following Questions


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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