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Trigonometry Practice Quiz and Work: Sin, Cos, Tan

Join today's geometry session with Jordan Johnson to practice sin, cos, and tan concepts. Find unknown side lengths in practice quizzes and engage in portfolio assignments. Don't forget to tidy up before leaving. See you tomorrow!

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Trigonometry Practice Quiz and Work: Sin, Cos, Tan

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  1. GBK Geometry Jordan Johnson

  2. Today’s plan • Greeting • Practice Quiz: sin, cos, tan • Work / Questions • Clean-up

  3. Practice Quiz:Find the unknown side lengths

  4. Practice Quiz:Find the unknown side lengths sin 56° = 3⁄AC AC  3.6187 3.6 4 23 tan 56° = 3⁄AB AB  2.0235  2.0 cos 70° = AB⁄3.8 AB  1.2997  1.3 sin 70° = BC⁄3.8 BC  3.5708  3.6

  5. Work • Now and 25+ minutes tonight, work on: • Writing your example proof. • Assembling your portfolio. • Assignments #75-80. • Asgs #75-76 have problems about similar right triangles. • Asgs #77-78 are about the Pyth. Thm. and special triangles. • Asgs #79-80 are about trigonometry. • Study guide problems. • Need other material for practice? Let me know.

  6. Clean-up / Reminders • Pick up all trash / items. • Push in chairs (at front and back tables). • See you tomorrow!

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