(IB) Class 10 Mathematics – Group 5, Geometry & Trigonometry | 5. Trigonometry Basics by Abraham | Learn Smarter
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5. Trigonometry Basics

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Sections

  • 1

    Right-Angled Triangle And Terminology

    This section introduces the right-angled triangle, its sides, and the basic trigonometric ratios associated with it.

    Learning Practice

  • 2

    Trigonometric Ratios

    This section covers the fundamental trigonometric ratios defined for right-angled triangles and their applications in finding unknown sides and angles.

    Learning Practice

  • 2.1

    Primary Trigonometric Ratios

    This section introduces the primary trigonometric ratios and their definitions related to right-angled triangles.

    Learning Practice

  • 2.2

    Important Note

    This section emphasizes the importance of trigonometric ratios being valid only for specific angles in right-angled triangles.

    Learning Practice

  • 3

    Reciprocal Ratios

    This section defines the reciprocal trigonometric ratios, providing foundational knowledge for understanding relationships between angles and triangle sides.

    Learning Practice

  • 4

    Fundamental Identities

    This section introduces trigonometric identities derived from the Pythagorean theorem, fundamental for understanding trigonometric relationships in right triangles.

    Learning Practice

  • 5

    Using Trigonometric Ratios To Find Sides And Angles

    This section covers how to use trigonometric ratios to find unknown sides and angles in right-angled triangles.

    Learning Practice

  • 5.1

    Finding A Side

    This section explains how to find the unknown sides and angles of a right-angled triangle using trigonometric ratios and inverse functions.

    Learning Practice

  • 5.2

    Finding An Angle

    This section explores how to find angles in right-angled triangles using trigonometric ratios and inverse functions.

    Learning Practice

  • 6

    Solving Right-Angled Triangle Problems

    This section guides students in solving problems related to right-angled triangles using trigonometric ratios and functions.

    Learning Practice

  • 7

    Example Problems

    This section presents practical examples using trigonometric ratios to solve problems involving right-angled triangles.

    Learning Practice

  • 7.1

    Example 1

    This section introduces trigonometry, focusing on right-angled triangles and their properties.

    Learning Practice

  • 7.2

    Example 2

    This section focuses on using trigonometric ratios to solve problems involving right-angled triangles.

    Learning Practice

  • 8

    Summary

    This section summarizes the essential concepts of trigonometry, focusing on right-angled triangles and key relationships between their angles and sides.

    Learning Practice

References

10 IB g&t ch5.pdf

Class Notes

Memorization

Revision Tests