# Constructions Class 9 NCERT Solutions

## 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. ### NCERT Books Free Pdf Download for Class 5, 6, 7, 8, 9, 10 , 11, 12 Hindi and English Medium

 Mathematics Biology Psychology Chemistry English Economics Sociology Hindi Business Studies Geography Science Political Science Statistics Physics Accountancy