High School · Similarity, Right Triangles, and Trigonometry

CCSS.MATH.CONTENT.HSG.SRT.C.7

Explain and use the relationship between the sine and cosine of complementary angles.

Read this standard on the official Common Core site

Lessons that teach this standard

• Trigonometric Ratios: Sine, Cosine and Tangent

  Why a side ratio in a right triangle depends only on the angle, what SOH CAH TOA names, why sine equals the cosine of the complement, and how to find a missing side.