Trigonometry (Day 2)

50 Minute Class, Curriculum, Geometry

Learning Goal: Build proficiency with finding missing sides in right triangles using trigonometry.



  • Common Core
    • HSG.SRT.C.7 – Explain and use the relationship between the sine and cosine of complementary angles.
    • HSG.SRT.C.8 – Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.


  • TEKS
    • G.9(A)¬†– determine the lengths of sides and measures of angles in a right triangle by applying the trigonometric ratios sine, cosine, and tangent to solve problems