Skip to main content
Super TutorResources
Chapter 13 of 15
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Revision Notes

Geometrical Constructions

Telangana Board · Class 9 · Mathematics

Quick revision notes for Geometrical Constructions — Telangana Board Class 9 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

44 questions20 flashcards5 concepts

Interactive on Super Tutor

Studying Geometrical Constructions? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for revision notes and more.

Try Super Tutor — Free

1,000+ Class 9 students started this chapter today

Key Topics to Revise

1

Basic Constructions

  • Use only ruler (ungraduated) and compass for pure geometric constructions
  • Every construction must have logical justification using congruence rules
  • Perpendicular bisector divides a line segment into two equal parts at 90°
2

Triangle Constructions - Special Cases

  • When sum of two sides is given: Extend one side and use perpendicular bisector method
  • When difference of two sides is given: Mark the difference on extended/reduced side
  • For perimeter constructions: Draw line equal to perimeter, then use angle bisectors
3

Circle Segment Construction

  • Circle segment contains all points that subtend the same angle on a given chord
  • Angle at center = 2 × angle at circumference (same arc)
  • Use the relationship between central and inscribed angles

Get complete notes with diagrams and examples

Full Notes

Key Concepts

Construction uses only ungraduated ruler (forMethodMethod60° angleGiven

Frequently Asked Questions

What are the important topics in Geometrical Constructions for Telangana Board Class 9 Mathematics?
Geometrical Constructions covers several key topics that are frequently asked in Telangana Board Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Geometrical Constructions — Telangana Board Class 9 Mathematics?
Understand the core concepts first, then work through the 44 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Geometrical Constructions

All 15 chapters — Telangana Board Class 9 Mathematics Revision Notes

For serious students

Get the full Geometrical Constructions chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for Telangana Board Class 9 Mathematics.

Try Super Tutor Free
Try the full chapter — Free