1. Consider the diagram to the right. Draw the reference triangle that could be used to find the trigonometric functions for 20. y

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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**Section 13 – Topic 4**
**The Radian Measure – Part 2**

1. Consider the diagram to the right. Draw the reference triangle that could be used to find the trigonometric functions for ∠θ.

**Description of Diagram:**
The diagram displays a circle centered at the origin of an x-y coordinate plane. An angle θ is marked inside the circle, formed by the positive x-axis and a radius of the circle. The terminal side of the angle θ intersects the circle.

To solve the exercise, you will need to:
- Draw a right triangle by projecting the endpoint of the radius (the intersection of the terminal side of angle θ with the circle) perpendicular to the x-axis.
- This right triangle will have:
  - The radius of the circle as the hypotenuse.
  - The horizontal segment along the x-axis as the adjacent side to the angle θ.
  - The vertical segment (perpendicular to the x-axis) as the opposite side to the angle θ.

This reference triangle helps in defining the basic trigonometric functions (sine, cosine, and tangent) for the angle θ.
Transcribed Image Text:**Section 13 – Topic 4** **The Radian Measure – Part 2** 1. Consider the diagram to the right. Draw the reference triangle that could be used to find the trigonometric functions for ∠θ. **Description of Diagram:** The diagram displays a circle centered at the origin of an x-y coordinate plane. An angle θ is marked inside the circle, formed by the positive x-axis and a radius of the circle. The terminal side of the angle θ intersects the circle. To solve the exercise, you will need to: - Draw a right triangle by projecting the endpoint of the radius (the intersection of the terminal side of angle θ with the circle) perpendicular to the x-axis. - This right triangle will have: - The radius of the circle as the hypotenuse. - The horizontal segment along the x-axis as the adjacent side to the angle θ. - The vertical segment (perpendicular to the x-axis) as the opposite side to the angle θ. This reference triangle helps in defining the basic trigonometric functions (sine, cosine, and tangent) for the angle θ.
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