Remeber ADJACENT means right next to. It is the side that is actually touching the angle that you are looking at. The opposite side is the side that does not touch the angle you are looking at.
Also remember this when you are looking for the length of a side.
If the x is on top you will multiply.
If the x is on bottom you will divide. The tan(number°) will be on the bottom of the fraction.
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On the next problems you are looking for the measurement of the angle. These are a lot easier. This is like what we did the day before.
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Question 1
1.
A red arrow is pointing to one side of the triangle. Is that side the opposite or adjacent side to the angle with the asterisk?
Question 2
2.
A red arrow is pointing to one side of the triangle. Is that side the opposite or adjacent side to the angle with the asterisk?
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
First to setup the ratio it is going to look like this. Opposite over adjacent is going to be 15/x So you get
When the x is on bottom we will dividing. It will end up being
It will look like this in the calculator. Makes sure that you have degree clicked. and that you use just the regular tan without clicking "inv" first.
Here is what the answer is.
Question 8
8.
in the calculator it will look like this
Question 9
9.
Like this where the x is on top you will multiply the numbers.
Question 10
10.
Question 11
11.
Opposite/Adjacent
is 3/5 in this case. So in the calculator you will use the "inv" button with the "tan" And always remember that you have to have "deg" selected also.
