hi..can anyone tell me a site where i can learn how to do the sine, cosine and tangent of a triangle. i have a physics test tomorrow and i have no idea how to do it and its explained really hard in my book. so is there an easy way to learn it?
2006-09-22 20:53:00 · 13 answers · asked by xxlovexx 1 in Science & Mathematics ➔ Mathematics
I have looked a few websites for you, these are listed below. Hopefully they will help.
The way I always remember sin, cos and tan rules are as follows:-
There are three sides to a right angled triangle, and there are three terms that can be applied. The longest side is always the "Hypotenuse". This is generally the sloping side of the triangle.
The next side is “Adjacent.” This side of the triangle is applied to the side that is closest to the angle you are trying to calculate.
The third side is “Opposite.” This side is applied to the side that is opposite the angle you are trying to calculate.
These three terms, opposite, adjacent and hypotenuse represent the lengths of the three sides of the triangle. When the length values and/or angle values are substituted into the trigonometrical formulas, you can calculate the specified unknown length or angle as required.
There are three trig formulas we will use, sine rule, cosine rule and tangent rule.
SOH CAH TOA
Which translates into:-
SOH = Sine, which is the Opposite over the Hypotenuse.
CAH = Cosine, which is the Adjacent over the Hypotenuse.
TOA = Tan, which is the Opposite over the Adjacent.
Good luck with the test.
2006-09-22 21:06:21 · answer #1 · answered by Hepialid 2 · 0⤊ 0⤋
There should be some websites that will explain that on a high school level. Trig really is alot easier than the more advanced maths.
2006-09-22 21:00:38 · answer #2 · answered by dakittenizcozmic 2 · 0⤊ 0⤋
y the height
x the width
and r is the hypotenuse of right triangle
when u want find the angle in respecct on x-axis
sin angle=y/r
cos angle=x/r
tan angle=y/x
2006-09-22 23:35:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Sin Cos Tan, lol easy stuff.
2006-09-22 20:56:57 · answer #4 · answered by amish_renegade 4 · 0⤊ 0⤋
refer the eighth answer from the top hes explained it really well
2006-09-23 00:03:40 · answer #5 · answered by xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 2 · 0⤊ 0⤋
I like trigonometry...You can ask me...That's what I'm taking..Im a 3rd year highschool student,email me here www.regina_92@yahoo.com
2006-09-22 21:48:26 · answer #6 · answered by reg 2 · 0⤊ 0⤋
http://mathworld.wolfram.com/Trigonometry.html
..best I could find in a short time. Memorize the relationships & you'll do fine.
2006-09-22 21:45:17 · answer #7 · answered by Helmut 7 · 0⤊ 0⤋
Why do you kids wait until the last day to ask?
2006-09-22 21:01:52 · answer #8 · answered by MrZ 6 · 0⤊ 0⤋
i did not need to take it.
i was already the best shot in the family.
2006-09-22 21:01:44 · answer #9 · answered by arkie 4 · 0⤊ 0⤋
look it up on a Geometery book
2006-09-22 20:56:22 · answer #10 · answered by hellhammer 4 · 0⤊ 0⤋