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SOH-CAH-TOA Trig Review

SOH-CAH-TOA Trig Review
SOH-CAH-TOA Trig Review
SOH-CAH-TOA Trig Review
SOH-CAH-TOA Trig Review
Product Description
This is a review of Trigonometry. It starts by reviewing the fact that the sum of the angles in any triangle is 180 degrees. Then students explore the Pythagorean Theorem and practice finding missing side lengths. Students have to find trigonometric ratios using SOH-CAH-TOA and then use their calculators to find sine, cosine, tangent, and the inverse functions. As calculators vary, some students will have a 2nd key while others have to use a SHIFT key on their calculator when finding the angle measures.
By the end of the lesson, students will be able to:
• Solve right triangles using the Pythagorean Theorem
• Use special right triangle short-cuts for 45-45-90 and 30-60-90 triangles to find missing side lengths
• Use trigonometric ratios of sine, cosine, and tangent to find missing sides and missing angles
Common Core Standards:
• CCSS.Math.Content.HSG-SRT.C.6 Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
• CCSS.Math.Content.HSG-SRT.C.7 Explain and use the relationship between the sine and cosine of complementary angles.
• CCSS.Math.Content.HSG-SRT.C.8 Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.
Use this activity as guided notes, homework assignment, substitute review assignment, or in small cooperative learning groups.
Hope it helps your students further their understanding of these important and basic trigonometric concepts.
Total Pages
8 pages
Answer Key
Included
Teaching Duration
90 minutes
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