According to what my English teacher told me: "When you're stuck in writing a story, always ask yourself the 5Ws: who, what, when, where and why?" If you still end up here chatting with me, then perhaps I may be able to somehow provide you with some inspiration during your distraction phase. :3
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Trigonometry, eh? Alright then, I'll give you a heads up and tell you three words you should definitely memorize (not memorize per se but rather understand):
SOH: Sin (θ) = Opposite/Hypothenuse
CAH: Cos (θ) = Adjacent/Hypothenuse
TOA: Tan (θ) = Opposite/Adjacent
θ = Angle
Now refer to the images below if you can see them:
Not as scary as you thought it would be, right? ;D But the above is for right triangles only.
Later on, you'll work with different kinds of triangles that don't have right angles like the one shown below:
[img]
In this case, you will be learning how to use the sine law: a/sin A = b/sin B = c/sin C
And the cos law:
a^2 = b^2 + c^2 - 2bc(cos A)
b^2 = a^2 + c^2 - 2ac(cos B)
c^2 = a^2 + b^2 - 2ab(cos C)
....And I think I pretty much covered the most essential items you will have to know in trigonometry. xDDD (Though I didn't explain how to find θ when you have its sin/cos/tan value. I could tell you how to calculate it on your calculator if you want. =P)
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Wait, there's no D mark? O_o I find that particularly odd...
At my school, we go by the percentage system (so much easier to read in my opinion) and quintiles (I believe you will learn this later in statistics, but to be clear students are ranked with a value from 1 to 5 according to their grade, 1 being the best and 5 being the worst). If we went by a letter system, I think the grading would be something like this under each interval:
A = 95% |A- = [90%, 94%] |A+ = [96%, 99%] |A++ = 100%
B = 85% |B- = [80%, 84%] |B+ = [86%, 89%]
C = 75% |C- = [70%, 74%] |C+ = [76%, 79%]
D = 65% |D- = [60%, 64%] |D+ = [66%, 69%]
F = x < 60%