Back to Complementary angle relationship (sin x = cos(90-x)) — Problem 5 · Task Set 7

Complementary Angle Relationship

Grade 10·21 problems·~30 min·Digital SAT Math·topic·sat-geotrig-rt-comp
Work through problems with immediate feedback
A

Fluency Practice

1.

If sin(25°)=cos(y)\\sin(25\degree) = \\cos(y), what is yy?