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Chapter 17 of 26
Concept Maps

Secants, Tangents And Their Properties — Concept Maps

NIOS · Class 10 · Maths

4 concept maps of Secants, Tangents And Their Properties for NIOS Class 10 Maths, each also written out as a text outline.

35 questions26 flashcards4 formulas & key relations5 concepts

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A diagram illustrating the three possible ways a line can interact with a circle: not intersecting, intersecting at two points (secant), and touching at one point (tangent).
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4 Concept Maps

Circle-Line Relationships Overview

Circle-Line Relationships Overview

The map in words

  • Circle Line Relations
    • Tangent
      • One Contact Point
      • Perpendicular to Radius
      • Equal Lengths from External Point
      • Tangent Length Formula
    • Secant
      • Two Intersection Points
      • Intersecting Chords Theorem
      • Secant Tangent Theorem
      • Power of Point
    • Properties
      • Alternate Segment Theorem
      • Angle Calculations
      • Construction Methods
      • Real World Applications

Secants and Tangents - Concept Overview

Secants and Tangents - Concept Overview

The map in words

  • Secants and Tangents
    • Definitions
      • Secant Line
        • Intersects at 2 points
      • Tangent Line
        • Touches at 1 point
        • Point of contact
      • External Point
        • 2 tangents possible
    • Properties
      • Tangent perpendicular to radius
      • Equal tangent lengths
      • Right angle at contact
    • Formulas
      • Tangent Length
        • PT² = OP² - OT²
      • Intersecting Chords
        • PA × PB = PC × PD
      • Secant-Tangent
        • PA × PB = PT²
    • Theorems
      • Alternate Segment
        • Angle relationships
        • Converse theorem
    • Applications
      • Distance problems
      • Angle calculations
      • Proof questions

Circle Line Relationships Overview

Circle Line Relationships Overview

The map in words

  • Circle Line Relations
    • Tangent
      • One contact point
      • Perpendicular to radius
      • Equal lengths from external point
      • Tangent chord angle theorem
    • Secant
      • Two intersection points
      • Intersecting chords theorem
      • PA times PB equals PC times PD
      • External secant properties
    • Applications
      • Engineering designs
      • Navigation problems
      • Geometric constructions
      • Real world measurements

Relationships between a circle, a tangent, and a secant

Relationships between a circle, a tangent, and a secant

The map in words

  • Relationships between a circle, a tangent, and a secant
    • Secant
    • Tangent
    • Circle with centre O
    • Tangent from an external point
    • Intersecting chords
    • Secant-tangent relation
    • Alternate Segment Theorem
    • Problem-solving with examples

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Frequently Asked Questions

What are the important topics in Secants, Tangents And Their Properties for NIOS Class 10 Maths?
Key topics in Secants, Tangents And Their Properties include Basic Ideas: Secant, Tangent, and Point of Contact, Tangent-Radius Property and Tangents from an External Point, Intersecting Chords and Secant-Tangent Relations, Angle Between a Tangent and a Chord. Study these first, then practise questions on each for the NIOS Class 10 board exam.
What do the concept maps for Secants, Tangents And Their Properties show?
The 4 maps show how the ideas in Secants, Tangents And Their Properties connect: Circle-Line Relationships Overview; Secants and Tangents - Concept Overview. Each map is also written out as an outline on this page.
How should I revise Secants, Tangents And Their Properties for the NIOS Class 10 board exam?
Learn the core ideas first, then work through the 35 practice questions on Secants, Tangents And Their Properties. Revise 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.

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