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Trig GeoGebra activity

Author:Henry Chen, GeoGebra Content Team
Topic:Geometry

Trig introduction

NJ Standard NJSLS-M G.SRT.C.6

Here is a video on the basic of sine cosine and tangent

Identify relational parts of a triangle in this activity.

Putting It All Together

Answer these open ended questions on your own or with others to form deeper math connections.

Describe what is meant by “opposite side”.

Describe what is meant by “adjacent side”.

A question to think about before we begin What happens to the angle of the triangle as we increase and decrease the two shorter side ("opposite side" and "adjacent side") of the triangle.

What is the ratio of sine

Tick all that apply
  • A
  • B
  • C
Check my answer (3)

What is the ratio of Cosine

Tick all that apply
  • A
  • B
  • C
Check my answer (3)

What is the ratio of Tangent

Tick all that apply
  • A
  • B
  • C
Check my answer (3)

What happens to the angle when the opposite side increases?

Tick all that apply
  • A
  • B
  • C
Check my answer (3)

What happens to the angle when the adjacent side increases?

Tick all that apply
  • A
  • B
  • C
Check my answer (3)

What happens to the angle when both opposite and adjust side increase at the same rate

Tick all that apply
  • A
  • B
  • C
Check my answer (3)
Now for Review on what we learned Solve for each question using what we learn about the trigonometric ratio of sine cosine and tangent

Does sine cosine and tangent only apply to right triangles?

Tick all that apply
  • A
  • B
Check my answer (3)

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