Can you find the value of θ?

Can you work out how to find θ? Was your solution different to mine? Share it in the comments below! Watch the video to see my solution!
This is a problem shared on twitter by: x.com/SilverBali7
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[@redroach401]

9:36 - Don't bring everything to one side, just cancel the sin(x)cos(theta) and then divide both sides by cos(theta)cos(x) to get tan(x)=tan(theta); x=theta; 5(theta) = 180; theta=36.

[@CheesyDuck432]

W love trigonometry

[@KenFullman]

I really wish you hadn't chosen "θ" as the label for your unknown angle. I read "2θ" as twenty degrees so finally gave up. It wasn't until 1:56 when you mention "3θ", wondering where that came from I realised. Even when I know what it says, it still looks like 20 on my screen :(