A right angled traingle xyz has a right angle at y, XY = 9cm, YZ = 3cm and XZ = √90 cm. If ZXY= θ and YZX = a. Then what is SIn θ, Cos θ and Tan θ

Answer 1

Draw a figure.

The hypotenuse is √90 = 3√10.

The side opposite θ=3 and the adjacent side is 9.

You have all the information you need unless you don't know the definitions of the trig functions!