• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer
  • RBSE Model Papers
    • RBSE Class 12th Board Model Papers 2022
    • RBSE Class 10th Board Model Papers 2022
    • RBSE Class 8th Board Model Papers 2022
    • RBSE Class 5th Board Model Papers 2022
  • RBSE Books
  • RBSE Solutions for Class 10
    • RBSE Solutions for Class 10 Maths
    • RBSE Solutions for Class 10 Science
    • RBSE Solutions for Class 10 Social Science
    • RBSE Solutions for Class 10 English First Flight & Footprints without Feet
    • RBSE Solutions for Class 10 Hindi
    • RBSE Solutions for Class 10 Sanskrit
    • RBSE Solutions for Class 10 Rajasthan Adhyayan
    • RBSE Solutions for Class 10 Physical Education
  • RBSE Solutions for Class 9
    • RBSE Solutions for Class 9 Maths
    • RBSE Solutions for Class 9 Science
    • RBSE Solutions for Class 9 Social Science
    • RBSE Solutions for Class 9 English
    • RBSE Solutions for Class 9 Hindi
    • RBSE Solutions for Class 9 Sanskrit
    • RBSE Solutions for Class 9 Rajasthan Adhyayan
    • RBSE Solutions for Class 9 Physical Education
    • RBSE Solutions for Class 9 Information Technology
  • RBSE Solutions for Class 8
    • RBSE Solutions for Class 8 Maths
    • RBSE Solutions for Class 8 Science
    • RBSE Solutions for Class 8 Social Science
    • RBSE Solutions for Class 8 English
    • RBSE Solutions for Class 8 Hindi
    • RBSE Solutions for Class 8 Sanskrit
    • RBSE Solutions

RBSE Solutions

Rajasthan Board Textbook Solutions for Class 5, 6, 7, 8, 9, 10, 11 and 12

  • RBSE Solutions for Class 7
    • RBSE Solutions for Class 7 Maths
    • RBSE Solutions for Class 7 Science
    • RBSE Solutions for Class 7 Social Science
    • RBSE Solutions for Class 7 English
    • RBSE Solutions for Class 7 Hindi
    • RBSE Solutions for Class 7 Sanskrit
  • RBSE Solutions for Class 6
    • RBSE Solutions for Class 6 Maths
    • RBSE Solutions for Class 6 Science
    • RBSE Solutions for Class 6 Social Science
    • RBSE Solutions for Class 6 English
    • RBSE Solutions for Class 6 Hindi
    • RBSE Solutions for Class 6 Sanskrit
  • RBSE Solutions for Class 5
    • RBSE Solutions for Class 5 Maths
    • RBSE Solutions for Class 5 Environmental Studies
    • RBSE Solutions for Class 5 English
    • RBSE Solutions for Class 5 Hindi
  • RBSE Solutions Class 12
    • RBSE Solutions for Class 12 Maths
    • RBSE Solutions for Class 12 Physics
    • RBSE Solutions for Class 12 Chemistry
    • RBSE Solutions for Class 12 Biology
    • RBSE Solutions for Class 12 English
    • RBSE Solutions for Class 12 Hindi
    • RBSE Solutions for Class 12 Sanskrit
  • RBSE Class 11

RBSE Class 9 Maths Notes Chapter 11 Constructions

April 14, 2022 by Prasanna Leave a Comment

These comprehensive RBSE Class 9 Maths Notes Chapter 11 Constructions will give a brief overview of all the concepts.

RBSE Class 9 Maths Chapter 11 Constructions

1. A geometrical construction is the process of drawing a geometrical figure using only two instruments; an ungraduated rular and compass.

2. A line which divides the given line in two equal parts and is perpendicular to the line segment is called the perpendicular bisector.

3. Angles, lines and points in one figure which bear a similar relationship, each to each, to angles, fines and points to another figure.

RBSE Class 9 Maths Notes Chapter 11 Constructions

4. Firstly, draw a rough diagram of the geometrical shape with a dark pencil and mark all the given measurements.

5. As far as possible 60°, 120°, 90°, 105°, 45°, 135° and 150° angles are made with the help of compass and ruler while all other angles are drawn using a protractor.

6. Construction of triangles is generally done in the following manner :
(i) Construction of a triangle whose three sides are given.
(ii) Construction of a triangle whose two sides and angles between them is given.
(iii) Construction of a triangle whose one side and two angles are given.
(iv) Construction of a right-angled triangle in which hypotenuse and one other side is given.
(v) Construction of a triangle whose two sides and an angle opposite to one of the given sides is given.

7. Construction of triangle is not possible if only the following components of triangle are known-
(i) Three angles : Construction of triangle is not possible if all three angles are given.
(ii) If two sides and their one opposite acute angle is given, then construction of triangle leads to ambiguous situation.

RBSE Class 9 Maths Notes Chapter 11 Constructions

8. To construct a triangle given its base, a base angle and sum of the other two sides.

9. To construct a triangle given its base, a base angle and the difference of the other two sides.

10. To construct a triangle given its perimeter and its two base angles.

Share this:

  • Click to share on WhatsApp (Opens in new window)
  • Click to share on Twitter (Opens in new window)
  • Click to share on Facebook (Opens in new window)

Related

Filed Under: RBSE Notes

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Recent Posts

  • RBSE Class 5 Hindi रचना पत्र लेखन
  • RBSE Solutions for Class 9 Science Chapter 2 पदार्थ की संरचना एवं अणु
  • RBSE Solutions for Class 5 Hindi परिवेशीय सजगता
  • RBSE Solutions for Class 5 Hindi Chapter 14 स्वर्ण नगरी की सैर
  • RBSE Solutions for Class 5 Hindi Chapter 17 चुनाव प्रक्रिया कब, क्या व कैसे?
  • RBSE Class 5 Hindi व्याकरण
  • RBSE Solutions for Class 5 Hindi Chapter 16 दृढ़ निश्चयी सरदार
  • RBSE for Class 5 English Vocabulary One Word
  • RBSE Solutions for Class 5 Environmental Studies Manachitr
  • RBSE Solutions for Class 9 Maths Chapter 1 वैदिक गणित Additional Questions
  • RBSE Class 5 English Vocabulary Road Safety

Footer

RBSE Solutions for Class 12
RBSE Solutions for Class 11
RBSE Solutions for Class 10
RBSE Solutions for Class 9
RBSE Solutions for Class 8
RBSE Solutions for Class 7
RBSE Solutions for Class 6
RBSE Solutions for Class 5
RBSE Solutions for Class 12 Maths
RBSE Solutions for Class 11 Maths
RBSE Solutions for Class 10 Maths
RBSE Solutions for Class 9 Maths
RBSE Solutions for Class 8 Maths
RBSE Solutions for Class 7 Maths
RBSE Solutions for Class 6 Maths
RBSE Solutions for Class 5 Maths
RBSE Class 11 Political Science Notes
RBSE Class 11 Geography Notes
RBSE Class 11 History Notes

Copyright © 2025 RBSE Solutions