Trigonometric Functions

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Objective

I can evaluate the sine, cosine, and tangent of common angles using the unit circle.

Part 1 of 3

Warm-up video

Professor Dave Explains · 7:18Vetted channel

We don't generate video — this one is by Professor Dave Explains on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

7 questions

1

Define the sine, cosine, and tangent functions in terms of a right triangle.

2

Using the triangle with sides of length 3, 4, and 5, calculate the sine, cosine, and tangent of the angle opposite the side of length 3.

Part 3 of 3

Exit ticket

Quick comprehension check

For a 30-60-90 triangle where the shorter leg is 1, calculate the sine, cosine, and tangent of both 30 degrees and 60 degrees. Show all work. For a 45-45-90 triangle where each leg is 1, calculate the sine, cosine, and tangent of the 45-degree angle. Show all work.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

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