Shana bought a used car for $5,800 with a loan at a simple interest rate of 3% for 6 years. How much will the total be after she
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Trigonometry as taught is mostly about memorizing two lousy triangles, namely half a square and half an equilateral triangle. This one is half an equilateral triangle.
The respective opposite sides of the 30/60/90 triangle are in ratio
A sine of √3/2 is an opposite of √3 and a hypotenuse of 2, so opposite and hypotenuse of the 60 degree angle. (It's the mama bear, in the middle, just right.)
In the end you just have memorize the two tired triangles of trig.