Finding Angles in Triangles (Finding an unknown angle with Trig and known ratio of sides)

[Tis_Fari]

I had this lesson in my class (in Belgium). It was actually pretty easy. But when I see your videos it refreshes my knowledge in a few minutes. We had something to remember the sin, cos and tan by this in dutch "sos cas toa". (Sinus van de overstaande rechthoekzijde op de schuine zijde) (Cosinus van de aanliggende rechthoekzijde op de schuine zijde) (Tanges van de overstaande rechthoekzijde op de aanliggende rechthoekzijde) You can translate that if you want. 😁 We're doing something with geonometric cirkel btw.