hey can someone show me how I can Calculate the sine, cosine, and tangent for each of the following angles.

a. 30° b. 80° c. 15°

Question

hey can someone show me how I can Calculate the sine, cosine, and tangent for each of the following angles.

a. 30°    b. 80°    c. 15°

hartnn · Answer

80 degrees would be interesting, 
can u use calculator??

anonymous · Answer

yeea

hartnn · Answer

can u input sin and cos in your calculator
like can u find sin 30 from your calculator?

anonymous · Answer

ooop l dnt have that  kinda calculator

anonymous · Answer

just look online for a sine cos tan chart

anonymous · Answer

the sinee for 30  degres would b 0.5 right? but how is it calculated is what l am tryna fig

anonymous · Answer

http://www.sosmath.com/tables/trigtable/trigtable.html

anonymous · Answer

you know what a 30-60-90 triangle is?

anonymous · Answer

let me tell you anyways
it's triangle with those degree measures and the sides of a triangle with those measures always has a ratio of $$1-\sqrt{3}-2$$
in a triangle, the side opposite the smallest angle is always the smallest side so in a 30-60-90 triangle, that smallest side is 1. and since sine is opposite over hypotenuse, sine of 30 is 1/2 or .5. 

There might be some formula for finding the sine cos and tan but it wouldn't be useful

anonymous · Answer

I don't know if that really answers your question, but it was hard work writing that. I'm exhausted now.