AIEEE Exam

In order to do trigonometry calculations, you should have a calculator with buttons for tan, cos, and sin. Before you begin, make sure that your calculator is in degree mode,

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AIEEE Other Question

How steep is this hillside and will it fail? How high is that mountain? These sorts of questions pop up all over in geosciences - from plate tectonics to maps to ocean waves, and they require you to find either an angle or a distance. To do this, we often use trigonometry, which is much easier when a right triangle is involved. Often when figuring out the distance to a faraway object, you know an angle and one length but need to know a second leg of a triangle.
Measuring bank slope
Measuring bank slope
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To figure out the missing side, you will substitute values into one of the trig formulas above, and solve for the missing value. For example, if you know the side adjacent to the angle and need to know the hypotenuse, you can use the formula for cosine and solve for the length you need.