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Right Triangle Trigonometry

Right Triangle Trigonometry

Author: Leif Park Jordan

    Introduce the sine, cosine, and tangent ratios.


    Demonstrate how to apply the trigonometric ratios to solve for an unknown side of a right triangle given an angle and side length.


    Provide real world examples that apply the trigonometric ratios.


This packet should help a learner seeking to understand the sine, cosine, and tangent trigonometric ratios for right triangles.

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This video introduces the sine function.

Source: RobertOB on Guaranteach


This video introduces the cosine function.

Source: Kevin Kriescher on Guaranteach


This video introduces the tangent function.

Source: RobertOB on Guaranteach

Solving for a Missing Side

This video demonstrates how to find an unknown side of a right triangle using trigonometric ratios. It also shows how trigonometry can be useful in real life.

Source: Ronald on Guaranteach