Urgently seeking help with my Algebra 1 homework, I need help ASAP?

Ok, so my questions are:

1. How do I find the Sine of a angle and reduce it to lower terms?

2. How do I find the Cosine of a angle and reduce it to lower terms?

3. How do I find the Tangent of a angle and reduce it to lower terms?

I really need to know how to do those 3 things in order to complete my Algebra 1 homework. Please help me as soon as possible. I need to get my work done today, and my text book doesn't show or tell me how to do the work. So please help me! It's urgent! Thanks so much!

2011-08-27T18:56:33Z

Thanks for the help @Bob, I appreciate your help very much!

Bob2011-08-27T18:51:19Z

Favorite Answer

Use SOHCAHTOA (pronounced "so cah toe ah")

sine = opposite side over hypoteneuse
cosine = adjacent side over hypotenuese
tangent = opposite side over adjacent

To find any of these measurements, take the length of the side of the triangle (the side opposite the angle, the side adjacent to the angle, or the hypoteneuse) and divide it by the side that is the "over" side.

So if you have a triangle with a horizontal side that is 6 long and a vertical side that is 8 long and a hypoteneuse that is 10 long, you can apply SOHCAHTOA

| \ Angle B
| \
| \ hypotenuese = 10
| \
vertical = 8 | \
|______\ angle A
horizontal = 6

sine A = opposite / hypo = 8/10 = 4/5
cos A = adjacent / hypo = 6 / 10 = 3/5
tan A = opp / adjacent = 8/6 = 4/3 (or you can take sine / cos = 4/3)

For angle B
sin B = opp / hypo = 6/10
cos B = adj / hypo = 8/10
tan B = opp / adj = 6/8

10

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