This image states that
Sine = Opposite/Hypotenuse
Cosine = Adjacent/Hypotenuse
Tangent = Opposite/Adjacent
Secant = Hypotenuse/Adjacent
Cotangent = Adjacent/Opposite
Cosecant = Hypotenuse/Opposite
Questions:
Find sin B
Find cos B
Find tan B
Find sec B
Find cot B
Find csc B