PLEASE HELP *see attachment *

Answer:
9.16 I think
Step-by-step explanation:
angle B = [tex]tan^{-1}[/tex]([tex]\frac{22.91}{10}[/tex]) = 66.4 degrees to 1 decimal place
sin(66.4) = [tex]\frac{CD}{10}[/tex]
CD = 10sin(66.4)
CD = 9.16 to 2 decimal places