Soh-Cah-Toa
The sides of a 45-45-90 triangle have a relationship that is x, x, and x*sqrt(2). Sin = opposite/hypotenuse, cos = adjacent/hypotenuse, and tan opposite/adjacent. The “Aha!” Moments. When the student realizes that, “hey, the reason why 30-60-90 triangles have the relationship they do is simply from dividing an equilateral triangle in half”. ................
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