Answer:
c= x/sin 30
or
c = x / cos 60
Step-by-step explanation:
sin theta = opposite side / hypotenuse
sin 30 = x /c
Multiply each side by c
c sin 30 = x/c *c
c sin 30 = x
Divide each side by sin 30
c sin 30/sin 30 = x/ sin 30
c= x/sin 30
Another valid expression would be
cos theta = adjacent side / hypotenuse
cos 60 = x/c
Multiply by c
c cos 60 = x/c *c
c cos 60 =x
Divide by cos 60
c cos 60/ cos 60 = x / cos 60
c = x / cos 60
