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Introduction to Trigonometric Ratios

Grade Levels
9th - 11th
Formats Included
  • Zip
Pages
20 pages

Description

This lesson introduces students to the three basic trigonometric ratios: sine, cosine, and tangent by having them work with similar triangles.

Students will first find a missing side in two right triangles using the Pythagorean Theorem. Using similar triangles students will find the ratios of sides and be introduced to sine, cosine and tangent ratios.

Students then learn to write the trig ratios for given triangles.

CCSS - G-SRT- 7

Total Pages
20 pages
Answer Key
Included
Teaching Duration
40 minutes
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