2.25/10.25 (put that in a calculator)
To find this understand SOH CAH TOA
S stands for sin and the OH means you do the opposite side of the angle divided by the hypotenuse
C stands for cos and the AH means you do the adjacent side divided by the hypotenuse or 2.25/10.25
T stands for tan and the OA means you do the opposite side divided by the adjacent side.
Hope this helps