Right Triangle Trigonometry
Grade 8•45 minutes
Learning Objective
I can use sine, cosine, and tangent to find the missing side length of a right triangle.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. Define sine (sin) and cosine (cos) in terms of the sides of a right triangle (opposite, adjacent, hypotenuse).
2. In a right triangle, if sin(θ) = ⅖, what is the value of cos(90° - θ)? Explain your answer.
3. A right triangle has an angle θ. The hypotenuse is 10 cm long, and the side opposite to θ is 6 cm long. Find sin(θ).
...and 4 more questions
Educational Video
Trig Ratios - Right Triangle Trigonometry - VividMath.com
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