Answer:
sinα = opposite/hypotenuse 
 
cosα = adjacent/hypotenuse 
 
tanα = opposite/adjacent 
 
tan25 = 19/x 
 
x = 19/tan25 
 
x ≈ 40.75 to nearest hundredth 
 
sin25 = 19/y 
 
y = 19/sin25 
 
y ≈ 44.96 to nearest hundredth 
 
cos51 = x/20 
 
x = 20cos51 
 
x ≈ 12.59 to nearest hundredth 
 
sin51 = y/20 
 
y = 20sin51 
 
y ≈ 15.54 to nearest hundredth 
 
tan12 = 46/x 
 
x = 46/tan12 
 
x ≈ 216.41 to nearest hundredth 
 
sin12 = 46/y 
 
y = 46/sin12 
 
y ≈ 221.25 to nearest hundredth