Sunday, September 26, 2010

Feroz - Blog 5

9 - 1: Geometry with a hint of retarded-ness.

Solving right triangles using SOHCAHTOA.

For the sake of taking up space, I'm going to explain what this stands for. Ahem..

SinΘ = opposite/hypotenuse

CosΘ = adjacent/hypotenuse

TanΘ = opposite/adjacent

CscΘ = hypotenuse/opposite

SecΘ = hypotenuse/adjacent

CotΘ = adjacent/opposite

Note: And easy way to remember Csc, Sec, and Cot is that they're the opposite of thier respective trig functions, but you probably already knew that.

Example time.

In triangle WTF, angle W = 90, angle T = 12, and t = 12. Find w and f.

This is gonna be hard for me to explain without a triangle in front of me so don't expect anything great.

To find w, you would use:

Sin 25 = w/18

So w = 18sin25
which is 7.607

Now to find f, use:

Cos 25 = c/18

c = 18cos25
which is = 16.314

There you go. You just solved the triangle WTF.

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