Soh-Cah-Toa
Understand the laws of equilateral, 30o-60o-90o, and 45o-45o-90o triangles. Understand how sin, cos, and tan can be calculated without a calculator. ... 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!” ... Determine a ... ................
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