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Key Concept

At the end of the lesson students should understand how to:

  • Chart for Trig value of special angles: 0,30,45,60,90 degrees

  • Use SOHCAHTOA to solve special right triangles

  • Use SOHCAHTOA to solve right triangles: side and angles

 

 

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The left hand tricks method is a simple but ingenious way to visualize and understand how to find the trig values of major and minor trig functions using solely one's left hand. Label your left hand as such.

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Using your left hand, you will ultimately be able to evaluate the five special reference angles corresponding major and minor trig functions.

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Practice Problems

Lesson Summary: By the end of this lesson, you should be able to understand and recreate the six trigonometric functions of the the six reference angles including 0, 30, 45, 60, and 90 degrees using the left hand tricks method and be able to find the sides and angles of any special and right triangle.

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