NCERT Solutions for Class 9 Maths Chapter 11 Constructions Exercise 11.1 and Exercise 11.2 are available to read or download in PDF free. These NCERT Solutions and Offline Apps are applicable for all the students following NCERT Books in CBSE Board, UP Board – High School, MP Board – Hindi Medium & English Medium, Gujarat Board and all other boards. NCERT Exemplar Problems Solutions are available to download free.
NCERT Solutions for Class 9 Maths Chapter 11 Constructions
Read or view class 9 Maths Chapter 11 Constructions Solutions. NCERT Books for Class 9 All Subjects free.
Class 9 Maths Chapter 11 Exercise 11.1 Solutions
Exercise 11.1 Solutions online
प्रश्नावली 11.1 हल in Hindi
Download Exercise 11.1 in PDF
Class 9 Maths Chapter 11 Exercise 11.2 Solutions
Exercise 11.2 Solutions online
प्रश्नावली 11.2 हल in Hindi
Download Exercise 11.2 in PDF
Introduction of Constructions
In earlier chapters, the diagrams, which were necessary to prove a theorem or solving exercises were not necessarily precise. They were drawn only to give you a feeling for the situation and as an aid for proper reasoning. However, sometimes one needs an accurate figure, for example – to draw a map of a building to be constructed, to design tools, and various parts of a machine, to draw road maps etc.
To draw such figures some basic geometrical instruments are needed. You must be having a geometry box which contains the following:
(i) A graduated scale, on one side of which centimetres and millimetres are
marked off and on the other side inches and their parts are marked off.
(ii) A pair of set – squares, one with angles 90°, 60° and 30° and other with angles
90°, 45° and 45°.
(iii) A pair of dividers (or a divider) with adjustments.
(iv) A pair of compasses (or a compass) with provision of fitting a pencil at one
(v) A protractor.