Answer:
23.7555090109
Step-by-step explanation:
sin= opposite/hypotenuse
sin(53) = BC/60cm
BC= sin(53)*60 = 23.7555090109
C, not sure but C. It makes sense to me & I got it right when I did it
If a = 10, then the equation would be 10+6.
The answer would be 16.
Hope this helps! :D