Exercises: Sine and Cosine of Complementary Angles

Grade 9·20 problems·~28 min·Common Core Math - HS Geometry·standard·hsg-srt-c-7

Work through problems with immediate feedback

Fluency Practice

Which equation correctly states the complementary angle relationship for sine and cosine?

$\sin(\theta) = \cos(\theta)$

$\sin(\theta) = \cos(90\degree + \theta)$

$\sin(\theta) = \cos(90\degree - \theta)$

$\sin(\theta) = 1 - \cos(\theta)$