Geometry

[Guest]

I have a problem where I have to find the value of x.

right triangle. tall side is 15, bottom side is x

the two angles are 18 and obviously 90 bc it is a right triangle. the unknown angle has an egg shaped circle with a line through it. I think it is sin, but I'm not sure.

how to i do this problem? my phone battery is at 0 so i cannot take a picture of the actual problem, sorry.