Given measure are length of the hypotenuse and measure of an acute angle in a right triangle
Unknown is a length of a leg
Let Unknown leg = x
So ,
[tex] \sin(θ) = \frac{Opp}{hур}[/tex]
[tex]\sin(θ) = \frac{Leg}{hyp} [/tex]
[tex]Leg = \sin(θ)* hyp [/tex]
Hence, answer is sin.