Right Triangle Trigonometry

Grade 845 min

Learning Objective

I can use sine, cosine, and tangent to find the missing side length of a right triangle.

Lesson Flow

Watch Video

5 min

Trig Ratios - Right Triangle Trigonometry - VividMath.com

VividMath

Practice

14 min

7 questions • Short answer

Exit Ticket

5 min

In a right triangle, angle θ is 30° and the hypotenuse is 10 cm. Find the length of the side opposite angle θ. In a right triangle, angle θ is 60° and the side adjacent to angle θ is 5 cm. Find the length of the hypotenuse. In a right triangle, angle θ is 45° and the side opposite angle θ is 7 cm. Find the length of the side adjacent to angle θ.

Teacher Guide

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  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts

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